Home / 38,454.47-57,681.33-12,159.21

Finding the Fourth Proportional to 38,454.47, 57,681.33 and 12,159.21

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Solution

The fourth proportional to 38,454.47, 57,681.33 and 12,159.21 is: 18,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.47 : 57,681.33 = 12,159.21 : x
  2. Step 2: Convert to fraction form
    38,454.47/57,681.33 = 12,159.21/x
  3. Step 3: Cross multiply
    38,454.47x = 57,681.33 × 12,159.21
  4. Step 4: Simplify right side
    38,454.47x = 701,359,404.55
  5. Step 5: Solve for x
    x = 701,359,404.55/38,454.47
  6. Step 6: Final answer
    x = 18,238.70

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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.