Home / 22,813.92-31,479.84-13,385.52

Finding the Fourth Proportional to 22,813.92, 31,479.84 and 13,385.52

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Solution

The fourth proportional to 22,813.92, 31,479.84 and 13,385.52 is: 18,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,813.92 : 31,479.84 = 13,385.52 : x
  2. Step 2: Convert to fraction form
    22,813.92/31,479.84 = 13,385.52/x
  3. Step 3: Cross multiply
    22,813.92x = 31,479.84 × 13,385.52
  4. Step 4: Simplify right side
    22,813.92x = 421,374,027.92
  5. Step 5: Solve for x
    x = 421,374,027.92/22,813.92
  6. Step 6: Final answer
    x = 18,470.04

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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.