Home / 38,885.91-58,338.09-12,590.61

Finding the Fourth Proportional to 38,885.91, 58,338.09 and 12,590.61

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Solution

The fourth proportional to 38,885.91, 58,338.09 and 12,590.61 is: 18,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,885.91 : 58,338.09 = 12,590.61 : x
  2. Step 2: Convert to fraction form
    38,885.91/58,338.09 = 12,590.61/x
  3. Step 3: Cross multiply
    38,885.91x = 58,338.09 × 12,590.61
  4. Step 4: Simplify right side
    38,885.91x = 734,512,139.33
  5. Step 5: Solve for x
    x = 734,512,139.33/38,885.91
  6. Step 6: Final answer
    x = 18,888.90

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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.