Home / 21,219.57-31,833.20-9,373.32

Finding the Fourth Proportional to 21,219.57, 31,833.20 and 9,373.32

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Solution

The fourth proportional to 21,219.57, 31,833.20 and 9,373.32 is: 14,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219.57 : 31,833.20 = 9,373.32 : x
  2. Step 2: Convert to fraction form
    21,219.57/31,833.20 = 9,373.32/x
  3. Step 3: Cross multiply
    21,219.57x = 31,833.20 × 9,373.32
  4. Step 4: Simplify right side
    21,219.57x = 298,382,793.66
  5. Step 5: Solve for x
    x = 298,382,793.66/21,219.57
  6. Step 6: Final answer
    x = 14,061.68

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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.