Home / 27,613.12-38,140.42-27,198.40

Finding the Fourth Proportional to 27,613.12, 38,140.42 and 27,198.40

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Solution

The fourth proportional to 27,613.12, 38,140.42 and 27,198.40 is: 37,567.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,613.12 : 38,140.42 = 27,198.40 : x
  2. Step 2: Convert to fraction form
    27,613.12/38,140.42 = 27,198.40/x
  3. Step 3: Cross multiply
    27,613.12x = 38,140.42 × 27,198.40
  4. Step 4: Simplify right side
    27,613.12x = 1,037,358,399.33
  5. Step 5: Solve for x
    x = 1,037,358,399.33/27,613.12
  6. Step 6: Final answer
    x = 37,567.59

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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.