Home / 42,728.04-64,079.94-17,737.20

Finding the Fourth Proportional to 42,728.04, 64,079.94 and 17,737.20

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Solution

The fourth proportional to 42,728.04, 64,079.94 and 17,737.20 is: 26,600.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,728.04 : 64,079.94 = 17,737.20 : x
  2. Step 2: Convert to fraction form
    42,728.04/64,079.94 = 17,737.20/x
  3. Step 3: Cross multiply
    42,728.04x = 64,079.94 × 17,737.20
  4. Step 4: Simplify right side
    42,728.04x = 1,136,598,711.77
  5. Step 5: Solve for x
    x = 1,136,598,711.77/42,728.04
  6. Step 6: Final answer
    x = 26,600.77

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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.