Home / 27,613.68-38,107.80-15,039.60

Finding the Fourth Proportional to 27,613.68, 38,107.80 and 15,039.60

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Solution

The fourth proportional to 27,613.68, 38,107.80 and 15,039.60 is: 20,755.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,613.68 : 38,107.80 = 15,039.60 : x
  2. Step 2: Convert to fraction form
    27,613.68/38,107.80 = 15,039.60/x
  3. Step 3: Cross multiply
    27,613.68x = 38,107.80 × 15,039.60
  4. Step 4: Simplify right side
    27,613.68x = 573,126,068.88
  5. Step 5: Solve for x
    x = 573,126,068.88/27,613.68
  6. Step 6: Final answer
    x = 20,755.15

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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.