Home / 37,247.12-55,878.38-12,288.70

Finding the Fourth Proportional to 37,247.12, 55,878.38 and 12,288.70

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Solution

The fourth proportional to 37,247.12, 55,878.38 and 12,288.70 is: 18,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,247.12 : 55,878.38 = 12,288.70 : x
  2. Step 2: Convert to fraction form
    37,247.12/55,878.38 = 12,288.70/x
  3. Step 3: Cross multiply
    37,247.12x = 55,878.38 × 12,288.70
  4. Step 4: Simplify right side
    37,247.12x = 686,672,523.97
  5. Step 5: Solve for x
    x = 686,672,523.97/37,247.12
  6. Step 6: Final answer
    x = 18,435.59

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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.