Home / 21,646.24-29,892.02-15,930.88

Finding the Fourth Proportional to 21,646.24, 29,892.02 and 15,930.88

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Solution

The fourth proportional to 21,646.24, 29,892.02 and 15,930.88 is: 21,999.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,646.24 : 29,892.02 = 15,930.88 : x
  2. Step 2: Convert to fraction form
    21,646.24/29,892.02 = 15,930.88/x
  3. Step 3: Cross multiply
    21,646.24x = 29,892.02 × 15,930.88
  4. Step 4: Simplify right side
    21,646.24x = 476,206,183.58
  5. Step 5: Solve for x
    x = 476,206,183.58/21,646.24
  6. Step 6: Final answer
    x = 21,999.49

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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.