Home / 21,700.86-29,930.76-15,752.22

Finding the Fourth Proportional to 21,700.86, 29,930.76 and 15,752.22

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Solution

The fourth proportional to 21,700.86, 29,930.76 and 15,752.22 is: 21,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.86 : 29,930.76 = 15,752.22 : x
  2. Step 2: Convert to fraction form
    21,700.86/29,930.76 = 15,752.22/x
  3. Step 3: Cross multiply
    21,700.86x = 29,930.76 × 15,752.22
  4. Step 4: Simplify right side
    21,700.86x = 471,475,916.29
  5. Step 5: Solve for x
    x = 471,475,916.29/21,700.86
  6. Step 6: Final answer
    x = 21,726.14

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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.