Home / 20,542.92-30,789.48-9,434.16

Finding the Fourth Proportional to 20,542.92, 30,789.48 and 9,434.16

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Solution

The fourth proportional to 20,542.92, 30,789.48 and 9,434.16 is: 14,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.92 : 30,789.48 = 9,434.16 : x
  2. Step 2: Convert to fraction form
    20,542.92/30,789.48 = 9,434.16/x
  3. Step 3: Cross multiply
    20,542.92x = 30,789.48 × 9,434.16
  4. Step 4: Simplify right side
    20,542.92x = 290,472,880.64
  5. Step 5: Solve for x
    x = 290,472,880.64/20,542.92
  6. Step 6: Final answer
    x = 14,139.80

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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.