Home / 30,891.76-42,635.17-19,562.29

Finding the Fourth Proportional to 30,891.76, 42,635.17 and 19,562.29

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Solution

The fourth proportional to 30,891.76, 42,635.17 and 19,562.29 is: 26,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891.76 : 42,635.17 = 19,562.29 : x
  2. Step 2: Convert to fraction form
    30,891.76/42,635.17 = 19,562.29/x
  3. Step 3: Cross multiply
    30,891.76x = 42,635.17 × 19,562.29
  4. Step 4: Simplify right side
    30,891.76x = 834,041,346.56
  5. Step 5: Solve for x
    x = 834,041,346.56/30,891.76
  6. Step 6: Final answer
    x = 26,998.83

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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.