Home / 42,489.27-63,733.91-20,235.17

Finding the Fourth Proportional to 42,489.27, 63,733.91 and 20,235.17

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Solution

The fourth proportional to 42,489.27, 63,733.91 and 20,235.17 is: 30,352.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,489.27 : 63,733.91 = 20,235.17 : x
  2. Step 2: Convert to fraction form
    42,489.27/63,733.91 = 20,235.17/x
  3. Step 3: Cross multiply
    42,489.27x = 63,733.91 × 20,235.17
  4. Step 4: Simplify right side
    42,489.27x = 1,289,666,561.77
  5. Step 5: Solve for x
    x = 1,289,666,561.77/42,489.27
  6. Step 6: Final answer
    x = 30,352.76

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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.