Home / 27,255.12-37,613.15-15,318.42

Finding the Fourth Proportional to 27,255.12, 37,613.15 and 15,318.42

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Solution

The fourth proportional to 27,255.12, 37,613.15 and 15,318.42 is: 21,140.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,255.12 : 37,613.15 = 15,318.42 : x
  2. Step 2: Convert to fraction form
    27,255.12/37,613.15 = 15,318.42/x
  3. Step 3: Cross multiply
    27,255.12x = 37,613.15 × 15,318.42
  4. Step 4: Simplify right side
    27,255.12x = 576,174,029.22
  5. Step 5: Solve for x
    x = 576,174,029.22/27,255.12
  6. Step 6: Final answer
    x = 21,140.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.