Home / 20,042.11-30,062.67-11,621.17

Finding the Fourth Proportional to 20,042.11, 30,062.67 and 11,621.17

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Solution

The fourth proportional to 20,042.11, 30,062.67 and 11,621.17 is: 17,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.11 : 30,062.67 = 11,621.17 : x
  2. Step 2: Convert to fraction form
    20,042.11/30,062.67 = 11,621.17/x
  3. Step 3: Cross multiply
    20,042.11x = 30,062.67 × 11,621.17
  4. Step 4: Simplify right side
    20,042.11x = 349,363,425.41
  5. Step 5: Solve for x
    x = 349,363,425.41/20,042.11
  6. Step 6: Final answer
    x = 17,431.47

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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.