Home / 26,439.52-39,648-13,951.68

Finding the Fourth Proportional to 26,439.52, 39,648 and 13,951.68

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Solution

The fourth proportional to 26,439.52, 39,648 and 13,951.68 is: 20,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.52 : 39,648 = 13,951.68 : x
  2. Step 2: Convert to fraction form
    26,439.52/39,648 = 13,951.68/x
  3. Step 3: Cross multiply
    26,439.52x = 39,648 × 13,951.68
  4. Step 4: Simplify right side
    26,439.52x = 553,156,208.64
  5. Step 5: Solve for x
    x = 553,156,208.64/26,439.52
  6. Step 6: Final answer
    x = 20,921.57

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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.