Home / 31,270.32-43,153.05-16,930.15

Finding the Fourth Proportional to 31,270.32, 43,153.05 and 16,930.15

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Solution

The fourth proportional to 31,270.32, 43,153.05 and 16,930.15 is: 23,363.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.32 : 43,153.05 = 16,930.15 : x
  2. Step 2: Convert to fraction form
    31,270.32/43,153.05 = 16,930.15/x
  3. Step 3: Cross multiply
    31,270.32x = 43,153.05 × 16,930.15
  4. Step 4: Simplify right side
    31,270.32x = 730,587,565.06
  5. Step 5: Solve for x
    x = 730,587,565.06/31,270.32
  6. Step 6: Final answer
    x = 23,363.61

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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.