Home / 40,191.40-60,286.80-12,111.34

Finding the Fourth Proportional to 40,191.40, 60,286.80 and 12,111.34

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Solution

The fourth proportional to 40,191.40, 60,286.80 and 12,111.34 is: 18,166.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,191.40 : 60,286.80 = 12,111.34 : x
  2. Step 2: Convert to fraction form
    40,191.40/60,286.80 = 12,111.34/x
  3. Step 3: Cross multiply
    40,191.40x = 60,286.80 × 12,111.34
  4. Step 4: Simplify right side
    40,191.40x = 730,153,932.31
  5. Step 5: Solve for x
    x = 730,153,932.31/40,191.40
  6. Step 6: Final answer
    x = 18,166.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.