Home / 38,886.78-58,339.42-12,591.52

Finding the Fourth Proportional to 38,886.78, 58,339.42 and 12,591.52

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Solution

The fourth proportional to 38,886.78, 58,339.42 and 12,591.52 is: 18,890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,886.78 : 58,339.42 = 12,591.52 : x
  2. Step 2: Convert to fraction form
    38,886.78/58,339.42 = 12,591.52/x
  3. Step 3: Cross multiply
    38,886.78x = 58,339.42 × 12,591.52
  4. Step 4: Simplify right side
    38,886.78x = 734,581,973.72
  5. Step 5: Solve for x
    x = 734,581,973.72/38,886.78
  6. Step 6: Final answer
    x = 18,890.28

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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.