Home / 20,697.15-31,042.59-7,549.55

Finding the Fourth Proportional to 20,697.15, 31,042.59 and 7,549.55

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Solution

The fourth proportional to 20,697.15, 31,042.59 and 7,549.55 is: 11,323.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.15 : 31,042.59 = 7,549.55 : x
  2. Step 2: Convert to fraction form
    20,697.15/31,042.59 = 7,549.55/x
  3. Step 3: Cross multiply
    20,697.15x = 31,042.59 × 7,549.55
  4. Step 4: Simplify right side
    20,697.15x = 234,357,585.33
  5. Step 5: Solve for x
    x = 234,357,585.33/20,697.15
  6. Step 6: Final answer
    x = 11,323.18

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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.