Home / 36,990.16-55,459.32-13,613.56

Finding the Fourth Proportional to 36,990.16, 55,459.32 and 13,613.56

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Solution

The fourth proportional to 36,990.16, 55,459.32 and 13,613.56 is: 20,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,990.16 : 55,459.32 = 13,613.56 : x
  2. Step 2: Convert to fraction form
    36,990.16/55,459.32 = 13,613.56/x
  3. Step 3: Cross multiply
    36,990.16x = 55,459.32 × 13,613.56
  4. Step 4: Simplify right side
    36,990.16x = 754,998,780.38
  5. Step 5: Solve for x
    x = 754,998,780.38/36,990.16
  6. Step 6: Final answer
    x = 20,410.80

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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.