Home / 31,480.16-43,442.16-17,332.64

Finding the Fourth Proportional to 31,480.16, 43,442.16 and 17,332.64

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Solution

The fourth proportional to 31,480.16, 43,442.16 and 17,332.64 is: 23,918.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.16 : 43,442.16 = 17,332.64 : x
  2. Step 2: Convert to fraction form
    31,480.16/43,442.16 = 17,332.64/x
  3. Step 3: Cross multiply
    31,480.16x = 43,442.16 × 17,332.64
  4. Step 4: Simplify right side
    31,480.16x = 752,967,320.10
  5. Step 5: Solve for x
    x = 752,967,320.10/31,480.16
  6. Step 6: Final answer
    x = 23,918.79

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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.