Home / 40,657.28-60,985.92-12,957.44

Finding the Fourth Proportional to 40,657.28, 60,985.92 and 12,957.44

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Solution

The fourth proportional to 40,657.28, 60,985.92 and 12,957.44 is: 19,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,657.28 : 60,985.92 = 12,957.44 : x
  2. Step 2: Convert to fraction form
    40,657.28/60,985.92 = 12,957.44/x
  3. Step 3: Cross multiply
    40,657.28x = 60,985.92 × 12,957.44
  4. Step 4: Simplify right side
    40,657.28x = 790,221,399.24
  5. Step 5: Solve for x
    x = 790,221,399.24/40,657.28
  6. Step 6: Final answer
    x = 19,436.16

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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.