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Finding the Fourth Proportional to 47,294.76, 70,959.12 and 20,265.76

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Solution

The fourth proportional to 47,294.76, 70,959.12 and 20,265.76 is: 30,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,294.76 : 70,959.12 = 20,265.76 : x
  2. Step 2: Convert to fraction form
    47,294.76/70,959.12 = 20,265.76/x
  3. Step 3: Cross multiply
    47,294.76x = 70,959.12 × 20,265.76
  4. Step 4: Simplify right side
    47,294.76x = 1,438,040,495.73
  5. Step 5: Solve for x
    x = 1,438,040,495.73/47,294.76
  6. Step 6: Final answer
    x = 30,405.92

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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.