Home / 18,972.22-28,453.46-5,641.76

Finding the Fourth Proportional to 18,972.22, 28,453.46 and 5,641.76

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Solution

The fourth proportional to 18,972.22, 28,453.46 and 5,641.76 is: 8,461.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.22 : 28,453.46 = 5,641.76 : x
  2. Step 2: Convert to fraction form
    18,972.22/28,453.46 = 5,641.76/x
  3. Step 3: Cross multiply
    18,972.22x = 28,453.46 × 5,641.76
  4. Step 4: Simplify right side
    18,972.22x = 160,527,592.49
  5. Step 5: Solve for x
    x = 160,527,592.49/18,972.22
  6. Step 6: Final answer
    x = 8,461.19

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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.