Home / 40,737.04-61,115.12-12,655.64

Finding the Fourth Proportional to 40,737.04, 61,115.12 and 12,655.64

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Solution

The fourth proportional to 40,737.04, 61,115.12 and 12,655.64 is: 18,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,737.04 : 61,115.12 = 12,655.64 : x
  2. Step 2: Convert to fraction form
    40,737.04/61,115.12 = 12,655.64/x
  3. Step 3: Cross multiply
    40,737.04x = 61,115.12 × 12,655.64
  4. Step 4: Simplify right side
    40,737.04x = 773,450,957.28
  5. Step 5: Solve for x
    x = 773,450,957.28/40,737.04
  6. Step 6: Final answer
    x = 18,986.43

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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.