Home / 25,157.22-34,717.13-15,731.30

Finding the Fourth Proportional to 25,157.22, 34,717.13 and 15,731.30

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Solution

The fourth proportional to 25,157.22, 34,717.13 and 15,731.30 is: 21,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,157.22 : 34,717.13 = 15,731.30 : x
  2. Step 2: Convert to fraction form
    25,157.22/34,717.13 = 15,731.30/x
  3. Step 3: Cross multiply
    25,157.22x = 34,717.13 × 15,731.30
  4. Step 4: Simplify right side
    25,157.22x = 546,145,587.17
  5. Step 5: Solve for x
    x = 546,145,587.17/25,157.22
  6. Step 6: Final answer
    x = 21,709.30

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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.