Home / 13,438.68-20,159.04-3,577.92

Finding the Fourth Proportional to 13,438.68, 20,159.04 and 3,577.92

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Solution

The fourth proportional to 13,438.68, 20,159.04 and 3,577.92 is: 5,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.68 : 20,159.04 = 3,577.92 : x
  2. Step 2: Convert to fraction form
    13,438.68/20,159.04 = 3,577.92/x
  3. Step 3: Cross multiply
    13,438.68x = 20,159.04 × 3,577.92
  4. Step 4: Simplify right side
    13,438.68x = 72,127,432.40
  5. Step 5: Solve for x
    x = 72,127,432.40/13,438.68
  6. Step 6: Final answer
    x = 5,367.15

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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.