Home / 38,331.96-52,897.98-21,336.12

Finding the Fourth Proportional to 38,331.96, 52,897.98 and 21,336.12

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Solution

The fourth proportional to 38,331.96, 52,897.98 and 21,336.12 is: 29,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,331.96 : 52,897.98 = 21,336.12 : x
  2. Step 2: Convert to fraction form
    38,331.96/52,897.98 = 21,336.12/x
  3. Step 3: Cross multiply
    38,331.96x = 52,897.98 × 21,336.12
  4. Step 4: Simplify right side
    38,331.96x = 1,128,637,649.04
  5. Step 5: Solve for x
    x = 1,128,637,649.04/38,331.96
  6. Step 6: Final answer
    x = 29,443.78

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Half scale
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Double scale
Find fourth proportional to 38,332.96, 52,899.36 and 21,337.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.