Home / 37,409.10-56,121.45-12,456.90

Finding the Fourth Proportional to 37,409.10, 56,121.45 and 12,456.90

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Solution

The fourth proportional to 37,409.10, 56,121.45 and 12,456.90 is: 18,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,409.10 : 56,121.45 = 12,456.90 : x
  2. Step 2: Convert to fraction form
    37,409.10/56,121.45 = 12,456.90/x
  3. Step 3: Cross multiply
    37,409.10x = 56,121.45 × 12,456.90
  4. Step 4: Simplify right side
    37,409.10x = 699,099,290.51
  5. Step 5: Solve for x
    x = 699,099,290.51/37,409.10
  6. Step 6: Final answer
    x = 18,687.95

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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.