Home / 31,270.97-43,154-16,930.95

Finding the Fourth Proportional to 31,270.97, 43,154 and 16,930.95

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Solution

The fourth proportional to 31,270.97, 43,154 and 16,930.95 is: 23,364.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.97 : 43,154 = 16,930.95 : x
  2. Step 2: Convert to fraction form
    31,270.97/43,154 = 16,930.95/x
  3. Step 3: Cross multiply
    31,270.97x = 43,154 × 16,930.95
  4. Step 4: Simplify right side
    31,270.97x = 730,638,216.30
  5. Step 5: Solve for x
    x = 730,638,216.30/31,270.97
  6. Step 6: Final answer
    x = 23,364.74

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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.