Home / 31,531.72-43,512.96-17,384.32

Finding the Fourth Proportional to 31,531.72, 43,512.96 and 17,384.32

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Solution

The fourth proportional to 31,531.72, 43,512.96 and 17,384.32 is: 23,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.72 : 43,512.96 = 17,384.32 : x
  2. Step 2: Convert to fraction form
    31,531.72/43,512.96 = 17,384.32/x
  3. Step 3: Cross multiply
    31,531.72x = 43,512.96 × 17,384.32
  4. Step 4: Simplify right side
    31,531.72x = 756,443,220.79
  5. Step 5: Solve for x
    x = 756,443,220.79/31,531.72
  6. Step 6: Final answer
    x = 23,989.91

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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.