Home / 20,411.80-30,546.42-17,670.76

Finding the Fourth Proportional to 20,411.80, 30,546.42 and 17,670.76

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Solution

The fourth proportional to 20,411.80, 30,546.42 and 17,670.76 is: 26,444.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411.80 : 30,546.42 = 17,670.76 : x
  2. Step 2: Convert to fraction form
    20,411.80/30,546.42 = 17,670.76/x
  3. Step 3: Cross multiply
    20,411.80x = 30,546.42 × 17,670.76
  4. Step 4: Simplify right side
    20,411.80x = 539,778,456.68
  5. Step 5: Solve for x
    x = 539,778,456.68/20,411.80
  6. Step 6: Final answer
    x = 26,444.43

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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.