Home / 40,025.52-55,171.38-31,514.16

Finding the Fourth Proportional to 40,025.52, 55,171.38 and 31,514.16

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Solution

The fourth proportional to 40,025.52, 55,171.38 and 31,514.16 is: 43,439.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025.52 : 55,171.38 = 31,514.16 : x
  2. Step 2: Convert to fraction form
    40,025.52/55,171.38 = 31,514.16/x
  3. Step 3: Cross multiply
    40,025.52x = 55,171.38 × 31,514.16
  4. Step 4: Simplify right side
    40,025.52x = 1,738,679,696.74
  5. Step 5: Solve for x
    x = 1,738,679,696.74/40,025.52
  6. Step 6: Final answer
    x = 43,439.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.