Home / 21,552.52-29,746.57-13,489.92

Finding the Fourth Proportional to 21,552.52, 29,746.57 and 13,489.92

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Solution

The fourth proportional to 21,552.52, 29,746.57 and 13,489.92 is: 18,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.52 : 29,746.57 = 13,489.92 : x
  2. Step 2: Convert to fraction form
    21,552.52/29,746.57 = 13,489.92/x
  3. Step 3: Cross multiply
    21,552.52x = 29,746.57 × 13,489.92
  4. Step 4: Simplify right side
    21,552.52x = 401,278,849.57
  5. Step 5: Solve for x
    x = 401,278,849.57/21,552.52
  6. Step 6: Final answer
    x = 18,618.65

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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.