Home / 30,800.88-42,494.80-25,125.85

Finding the Fourth Proportional to 30,800.88, 42,494.80 and 25,125.85

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Solution

The fourth proportional to 30,800.88, 42,494.80 and 25,125.85 is: 34,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,800.88 : 42,494.80 = 25,125.85 : x
  2. Step 2: Convert to fraction form
    30,800.88/42,494.80 = 25,125.85/x
  3. Step 3: Cross multiply
    30,800.88x = 42,494.80 × 25,125.85
  4. Step 4: Simplify right side
    30,800.88x = 1,067,717,970.58
  5. Step 5: Solve for x
    x = 1,067,717,970.58/30,800.88
  6. Step 6: Final answer
    x = 34,665.18

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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.