Home / 13,439.52-20,159.28-3,578.83

Finding the Fourth Proportional to 13,439.52, 20,159.28 and 3,578.83

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Solution

The fourth proportional to 13,439.52, 20,159.28 and 3,578.83 is: 5,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.52 : 20,159.28 = 3,578.83 : x
  2. Step 2: Convert to fraction form
    13,439.52/20,159.28 = 3,578.83/x
  3. Step 3: Cross multiply
    13,439.52x = 20,159.28 × 3,578.83
  4. Step 4: Simplify right side
    13,439.52x = 72,146,699.04
  5. Step 5: Solve for x
    x = 72,146,699.04/13,439.52
  6. Step 6: Final answer
    x = 5,368.25

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Similar ratio
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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.