Home / 31,279.32-43,165.08-17,132.16

Finding the Fourth Proportional to 31,279.32, 43,165.08 and 17,132.16

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Solution

The fourth proportional to 31,279.32, 43,165.08 and 17,132.16 is: 23,642.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.32 : 43,165.08 = 17,132.16 : x
  2. Step 2: Convert to fraction form
    31,279.32/43,165.08 = 17,132.16/x
  3. Step 3: Cross multiply
    31,279.32x = 43,165.08 × 17,132.16
  4. Step 4: Simplify right side
    31,279.32x = 739,511,056.97
  5. Step 5: Solve for x
    x = 739,511,056.97/31,279.32
  6. Step 6: Final answer
    x = 23,642.17

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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.