Home / 31,418.16-43,357.68-17,272.32

Finding the Fourth Proportional to 31,418.16, 43,357.68 and 17,272.32

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Solution

The fourth proportional to 31,418.16, 43,357.68 and 17,272.32 is: 23,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.16 : 43,357.68 = 17,272.32 : x
  2. Step 2: Convert to fraction form
    31,418.16/43,357.68 = 17,272.32/x
  3. Step 3: Cross multiply
    31,418.16x = 43,357.68 × 17,272.32
  4. Step 4: Simplify right side
    31,418.16x = 748,887,723.42
  5. Step 5: Solve for x
    x = 748,887,723.42/31,418.16
  6. Step 6: Final answer
    x = 23,836.14

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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.