Home / 31,026.20-42,816.90-16,879.88

Finding the Fourth Proportional to 31,026.20, 42,816.90 and 16,879.88

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Solution

The fourth proportional to 31,026.20, 42,816.90 and 16,879.88 is: 23,294.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,026.20 : 42,816.90 = 16,879.88 : x
  2. Step 2: Convert to fraction form
    31,026.20/42,816.90 = 16,879.88/x
  3. Step 3: Cross multiply
    31,026.20x = 42,816.90 × 16,879.88
  4. Step 4: Simplify right side
    31,026.20x = 722,744,133.97
  5. Step 5: Solve for x
    x = 722,744,133.97/31,026.20
  6. Step 6: Final answer
    x = 23,294.64

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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.