Home / 31,479.89-43,442.16-17,332.74

Finding the Fourth Proportional to 31,479.89, 43,442.16 and 17,332.74

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Solution

The fourth proportional to 31,479.89, 43,442.16 and 17,332.74 is: 23,919.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,479.89 : 43,442.16 = 17,332.74 : x
  2. Step 2: Convert to fraction form
    31,479.89/43,442.16 = 17,332.74/x
  3. Step 3: Cross multiply
    31,479.89x = 43,442.16 × 17,332.74
  4. Step 4: Simplify right side
    31,479.89x = 752,971,664.32
  5. Step 5: Solve for x
    x = 752,971,664.32/31,479.89
  6. Step 6: Final answer
    x = 23,919.14

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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.