Home / 25,428.24-38,082.18-12,917.25

Finding the Fourth Proportional to 25,428.24, 38,082.18 and 12,917.25

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Solution

The fourth proportional to 25,428.24, 38,082.18 and 12,917.25 is: 19,345.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428.24 : 38,082.18 = 12,917.25 : x
  2. Step 2: Convert to fraction form
    25,428.24/38,082.18 = 12,917.25/x
  3. Step 3: Cross multiply
    25,428.24x = 38,082.18 × 12,917.25
  4. Step 4: Simplify right side
    25,428.24x = 491,917,039.61
  5. Step 5: Solve for x
    x = 491,917,039.61/25,428.24
  6. Step 6: Final answer
    x = 19,345.30

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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.