Home / 34,265.76-47,285.28-20,120.16

Finding the Fourth Proportional to 34,265.76, 47,285.28 and 20,120.16

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Solution

The fourth proportional to 34,265.76, 47,285.28 and 20,120.16 is: 27,764.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,265.76 : 47,285.28 = 20,120.16 : x
  2. Step 2: Convert to fraction form
    34,265.76/47,285.28 = 20,120.16/x
  3. Step 3: Cross multiply
    34,265.76x = 47,285.28 × 20,120.16
  4. Step 4: Simplify right side
    34,265.76x = 951,387,399.24
  5. Step 5: Solve for x
    x = 951,387,399.24/34,265.76
  6. Step 6: Final answer
    x = 27,764.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.