Home / 25,440.72-38,159.16-12,952.92

Finding the Fourth Proportional to 25,440.72, 38,159.16 and 12,952.92

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Solution

The fourth proportional to 25,440.72, 38,159.16 and 12,952.92 is: 19,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,440.72 : 38,159.16 = 12,952.92 : x
  2. Step 2: Convert to fraction form
    25,440.72/38,159.16 = 12,952.92/x
  3. Step 3: Cross multiply
    25,440.72x = 38,159.16 × 12,952.92
  4. Step 4: Simplify right side
    25,440.72x = 494,272,546.75
  5. Step 5: Solve for x
    x = 494,272,546.75/25,440.72
  6. Step 6: Final answer
    x = 19,428.40

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1.5x scale

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.