Home / 34,402.73-47,476.24-20,788.90

Finding the Fourth Proportional to 34,402.73, 47,476.24 and 20,788.90

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Solution

The fourth proportional to 34,402.73, 47,476.24 and 20,788.90 is: 28,688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,402.73 : 47,476.24 = 20,788.90 : x
  2. Step 2: Convert to fraction form
    34,402.73/47,476.24 = 20,788.90/x
  3. Step 3: Cross multiply
    34,402.73x = 47,476.24 × 20,788.90
  4. Step 4: Simplify right side
    34,402.73x = 986,978,635.07
  5. Step 5: Solve for x
    x = 986,978,635.07/34,402.73
  6. Step 6: Final answer
    x = 28,688.97

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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.