Home / 34,618.64-47,789.68-20,276.48

Finding the Fourth Proportional to 34,618.64, 47,789.68 and 20,276.48

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Solution

The fourth proportional to 34,618.64, 47,789.68 and 20,276.48 is: 27,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,618.64 : 47,789.68 = 20,276.48 : x
  2. Step 2: Convert to fraction form
    34,618.64/47,789.68 = 20,276.48/x
  3. Step 3: Cross multiply
    34,618.64x = 47,789.68 × 20,276.48
  4. Step 4: Simplify right side
    34,618.64x = 969,006,490.73
  5. Step 5: Solve for x
    x = 969,006,490.73/34,618.64
  6. Step 6: Final answer
    x = 27,990.89

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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.