Home / 30,508.20-42,100.08-17,761.74

Finding the Fourth Proportional to 30,508.20, 42,100.08 and 17,761.74

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Solution

The fourth proportional to 30,508.20, 42,100.08 and 17,761.74 is: 24,510.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.20 : 42,100.08 = 17,761.74 : x
  2. Step 2: Convert to fraction form
    30,508.20/42,100.08 = 17,761.74/x
  3. Step 3: Cross multiply
    30,508.20x = 42,100.08 × 17,761.74
  4. Step 4: Simplify right side
    30,508.20x = 747,770,586.13
  5. Step 5: Solve for x
    x = 747,770,586.13/30,508.20
  6. Step 6: Final answer
    x = 24,510.48

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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.