Home / 31,092.14-42,908.46-16,945.76

Finding the Fourth Proportional to 31,092.14, 42,908.46 and 16,945.76

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Solution

The fourth proportional to 31,092.14, 42,908.46 and 16,945.76 is: 23,385.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,092.14 : 42,908.46 = 16,945.76 : x
  2. Step 2: Convert to fraction form
    31,092.14/42,908.46 = 16,945.76/x
  3. Step 3: Cross multiply
    31,092.14x = 42,908.46 × 16,945.76
  4. Step 4: Simplify right side
    31,092.14x = 727,116,465.13
  5. Step 5: Solve for x
    x = 727,116,465.13/31,092.14
  6. Step 6: Final answer
    x = 23,385.86

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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.