Home / 31,060.80-42,865.92-18,483.84

Finding the Fourth Proportional to 31,060.80, 42,865.92 and 18,483.84

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Solution

The fourth proportional to 31,060.80, 42,865.92 and 18,483.84 is: 25,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,060.80 : 42,865.92 = 18,483.84 : x
  2. Step 2: Convert to fraction form
    31,060.80/42,865.92 = 18,483.84/x
  3. Step 3: Cross multiply
    31,060.80x = 42,865.92 × 18,483.84
  4. Step 4: Simplify right side
    31,060.80x = 792,326,806.73
  5. Step 5: Solve for x
    x = 792,326,806.73/31,060.80
  6. Step 6: Final answer
    x = 25,508.90

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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.