Home / 31,023.52-42,812.26-16,876.42

Finding the Fourth Proportional to 31,023.52, 42,812.26 and 16,876.42

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Solution

The fourth proportional to 31,023.52, 42,812.26 and 16,876.42 is: 23,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,023.52 : 42,812.26 = 16,876.42 : x
  2. Step 2: Convert to fraction form
    31,023.52/42,812.26 = 16,876.42/x
  3. Step 3: Cross multiply
    31,023.52x = 42,812.26 × 16,876.42
  4. Step 4: Simplify right side
    31,023.52x = 722,517,680.91
  5. Step 5: Solve for x
    x = 722,517,680.91/31,023.52
  6. Step 6: Final answer
    x = 23,289.35

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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.