Home / 20,232.10-30,348.15-18,417.70

Finding the Fourth Proportional to 20,232.10, 30,348.15 and 18,417.70

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Solution

The fourth proportional to 20,232.10, 30,348.15 and 18,417.70 is: 27,626.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.10 : 30,348.15 = 18,417.70 : x
  2. Step 2: Convert to fraction form
    20,232.10/30,348.15 = 18,417.70/x
  3. Step 3: Cross multiply
    20,232.10x = 30,348.15 × 18,417.70
  4. Step 4: Simplify right side
    20,232.10x = 558,943,122.26
  5. Step 5: Solve for x
    x = 558,943,122.26/20,232.10
  6. Step 6: Final answer
    x = 27,626.55

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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.