Home / 31,478.24-43,440.12-17,331.08

Finding the Fourth Proportional to 31,478.24, 43,440.12 and 17,331.08

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Solution

The fourth proportional to 31,478.24, 43,440.12 and 17,331.08 is: 23,916.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478.24 : 43,440.12 = 17,331.08 : x
  2. Step 2: Convert to fraction form
    31,478.24/43,440.12 = 17,331.08/x
  3. Step 3: Cross multiply
    31,478.24x = 43,440.12 × 17,331.08
  4. Step 4: Simplify right side
    31,478.24x = 752,864,194.93
  5. Step 5: Solve for x
    x = 752,864,194.93/31,478.24
  6. Step 6: Final answer
    x = 23,916.97

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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.