Home / 20,002.46-30,003.68-17,689.71

Finding the Fourth Proportional to 20,002.46, 30,003.68 and 17,689.71

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Solution

The fourth proportional to 20,002.46, 30,003.68 and 17,689.71 is: 26,534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,002.46 : 30,003.68 = 17,689.71 : x
  2. Step 2: Convert to fraction form
    20,002.46/30,003.68 = 17,689.71/x
  3. Step 3: Cross multiply
    20,002.46x = 30,003.68 × 17,689.71
  4. Step 4: Simplify right side
    20,002.46x = 530,756,309.68
  5. Step 5: Solve for x
    x = 530,756,309.68/20,002.46
  6. Step 6: Final answer
    x = 26,534.56

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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.