Home / 38,951.12-58,435.32-12,658.52

Finding the Fourth Proportional to 38,951.12, 58,435.32 and 12,658.52

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Solution

The fourth proportional to 38,951.12, 58,435.32 and 12,658.52 is: 18,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,951.12 : 58,435.32 = 12,658.52 : x
  2. Step 2: Convert to fraction form
    38,951.12/58,435.32 = 12,658.52/x
  3. Step 3: Cross multiply
    38,951.12x = 58,435.32 × 12,658.52
  4. Step 4: Simplify right side
    38,951.12x = 739,704,666.93
  5. Step 5: Solve for x
    x = 739,704,666.93/38,951.12
  6. Step 6: Final answer
    x = 18,990.59

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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.