Home / 25,553.40-38,320.52-8,909.16

Finding the Fourth Proportional to 25,553.40, 38,320.52 and 8,909.16

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Solution

The fourth proportional to 25,553.40, 38,320.52 and 8,909.16 is: 13,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,553.40 : 38,320.52 = 8,909.16 : x
  2. Step 2: Convert to fraction form
    25,553.40/38,320.52 = 8,909.16/x
  3. Step 3: Cross multiply
    25,553.40x = 38,320.52 × 8,909.16
  4. Step 4: Simplify right side
    25,553.40x = 341,403,643.96
  5. Step 5: Solve for x
    x = 341,403,643.96/25,553.40
  6. Step 6: Final answer
    x = 13,360.40

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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.