Home / 39,201.52-58,780.68-20,434.72

Finding the Fourth Proportional to 39,201.52, 58,780.68 and 20,434.72

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Solution

The fourth proportional to 39,201.52, 58,780.68 and 20,434.72 is: 30,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,201.52 : 58,780.68 = 20,434.72 : x
  2. Step 2: Convert to fraction form
    39,201.52/58,780.68 = 20,434.72/x
  3. Step 3: Cross multiply
    39,201.52x = 58,780.68 × 20,434.72
  4. Step 4: Simplify right side
    39,201.52x = 1,201,166,737.21
  5. Step 5: Solve for x
    x = 1,201,166,737.21/39,201.52
  6. Step 6: Final answer
    x = 30,640.82

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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.