Home / 31,479.28-43,442.56-17,333.20

Finding the Fourth Proportional to 31,479.28, 43,442.56 and 17,333.20

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Solution

The fourth proportional to 31,479.28, 43,442.56 and 17,333.20 is: 23,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,479.28 : 43,442.56 = 17,333.20 : x
  2. Step 2: Convert to fraction form
    31,479.28/43,442.56 = 17,333.20/x
  3. Step 3: Cross multiply
    31,479.28x = 43,442.56 × 17,333.20
  4. Step 4: Simplify right side
    31,479.28x = 752,998,580.99
  5. Step 5: Solve for x
    x = 752,998,580.99/31,479.28
  6. Step 6: Final answer
    x = 23,920.45

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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.