Home / 31,027.62-42,816.85-16,880.16

Finding the Fourth Proportional to 31,027.62, 42,816.85 and 16,880.16

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Solution

The fourth proportional to 31,027.62, 42,816.85 and 16,880.16 is: 23,293.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.62 : 42,816.85 = 16,880.16 : x
  2. Step 2: Convert to fraction form
    31,027.62/42,816.85 = 16,880.16/x
  3. Step 3: Cross multiply
    31,027.62x = 42,816.85 × 16,880.16
  4. Step 4: Simplify right side
    31,027.62x = 722,755,278.70
  5. Step 5: Solve for x
    x = 722,755,278.70/31,027.62
  6. Step 6: Final answer
    x = 23,293.93

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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.