Home / 20,325.67-30,449.05-14,979.15

Finding the Fourth Proportional to 20,325.67, 30,449.05 and 14,979.15

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Solution

The fourth proportional to 20,325.67, 30,449.05 and 14,979.15 is: 22,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.67 : 30,449.05 = 14,979.15 : x
  2. Step 2: Convert to fraction form
    20,325.67/30,449.05 = 14,979.15/x
  3. Step 3: Cross multiply
    20,325.67x = 30,449.05 × 14,979.15
  4. Step 4: Simplify right side
    20,325.67x = 456,100,887.31
  5. Step 5: Solve for x
    x = 456,100,887.31/20,325.67
  6. Step 6: Final answer
    x = 22,439.65

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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.