Home / 27,561.15-41,341.73-21,000.15

Finding the Fourth Proportional to 27,561.15, 41,341.73 and 21,000.15

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Solution

The fourth proportional to 27,561.15, 41,341.73 and 21,000.15 is: 31,500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,561.15 : 41,341.73 = 21,000.15 : x
  2. Step 2: Convert to fraction form
    27,561.15/41,341.73 = 21,000.15/x
  3. Step 3: Cross multiply
    27,561.15x = 41,341.73 × 21,000.15
  4. Step 4: Simplify right side
    27,561.15x = 868,182,426.26
  5. Step 5: Solve for x
    x = 868,182,426.26/27,561.15
  6. Step 6: Final answer
    x = 31,500.23

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.