Home / 38,890.49-58,335.91-13,589.90

Finding the Fourth Proportional to 38,890.49, 58,335.91 and 13,589.90

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Solution

The fourth proportional to 38,890.49, 58,335.91 and 13,589.90 is: 20,384.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,890.49 : 58,335.91 = 13,589.90 : x
  2. Step 2: Convert to fraction form
    38,890.49/58,335.91 = 13,589.90/x
  3. Step 3: Cross multiply
    38,890.49x = 58,335.91 × 13,589.90
  4. Step 4: Simplify right side
    38,890.49x = 792,779,183.31
  5. Step 5: Solve for x
    x = 792,779,183.31/38,890.49
  6. Step 6: Final answer
    x = 20,384.91

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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.