Home / 38,243.50-52,778.88-21,251.74

Finding the Fourth Proportional to 38,243.50, 52,778.88 and 21,251.74

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Solution

The fourth proportional to 38,243.50, 52,778.88 and 21,251.74 is: 29,328.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,243.50 : 52,778.88 = 21,251.74 : x
  2. Step 2: Convert to fraction form
    38,243.50/52,778.88 = 21,251.74/x
  3. Step 3: Cross multiply
    38,243.50x = 52,778.88 × 21,251.74
  4. Step 4: Simplify right side
    38,243.50x = 1,121,643,035.25
  5. Step 5: Solve for x
    x = 1,121,643,035.25/38,243.50
  6. Step 6: Final answer
    x = 29,328.98

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Half scale
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Double scale
Find fourth proportional to 38,244.50, 52,780.26 and 21,252.74
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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.