Home / 31,390.42-47,301.56-25,965.85

Finding the Fourth Proportional to 31,390.42, 47,301.56 and 25,965.85

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Solution

The fourth proportional to 31,390.42, 47,301.56 and 25,965.85 is: 39,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,390.42 : 47,301.56 = 25,965.85 : x
  2. Step 2: Convert to fraction form
    31,390.42/47,301.56 = 25,965.85/x
  3. Step 3: Cross multiply
    31,390.42x = 47,301.56 × 25,965.85
  4. Step 4: Simplify right side
    31,390.42x = 1,228,225,211.73
  5. Step 5: Solve for x
    x = 1,228,225,211.73/31,390.42
  6. Step 6: Final answer
    x = 39,127.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.