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Finding the Fourth Proportional to 27,663, 38,175.21 and 15,088.02

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Solution

The fourth proportional to 27,663, 38,175.21 and 15,088.02 is: 20,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,663 : 38,175.21 = 15,088.02 : x
  2. Step 2: Convert to fraction form
    27,663/38,175.21 = 15,088.02/x
  3. Step 3: Cross multiply
    27,663x = 38,175.21 × 15,088.02
  4. Step 4: Simplify right side
    27,663x = 575,988,331.98
  5. Step 5: Solve for x
    x = 575,988,331.98/27,663
  6. Step 6: Final answer
    x = 20,821.61

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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.