Home / 37,115.68-55,678.65-12,157.69

Finding the Fourth Proportional to 37,115.68, 55,678.65 and 12,157.69

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Solution

The fourth proportional to 37,115.68, 55,678.65 and 12,157.69 is: 18,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,115.68 : 55,678.65 = 12,157.69 : x
  2. Step 2: Convert to fraction form
    37,115.68/55,678.65 = 12,157.69/x
  3. Step 3: Cross multiply
    37,115.68x = 55,678.65 × 12,157.69
  4. Step 4: Simplify right side
    37,115.68x = 676,923,766.32
  5. Step 5: Solve for x
    x = 676,923,766.32/37,115.68
  6. Step 6: Final answer
    x = 18,238.22

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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.