Home / 38,490.56-57,737.92-10,790.72

Finding the Fourth Proportional to 38,490.56, 57,737.92 and 10,790.72

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Solution

The fourth proportional to 38,490.56, 57,737.92 and 10,790.72 is: 16,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.56 : 57,737.92 = 10,790.72 : x
  2. Step 2: Convert to fraction form
    38,490.56/57,737.92 = 10,790.72/x
  3. Step 3: Cross multiply
    38,490.56x = 57,737.92 × 10,790.72
  4. Step 4: Simplify right side
    38,490.56x = 623,033,728.10
  5. Step 5: Solve for x
    x = 623,033,728.10/38,490.56
  6. Step 6: Final answer
    x = 16,186.66

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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.