Home / 27,710.44-38,240.51-15,135.19

Finding the Fourth Proportional to 27,710.44, 38,240.51 and 15,135.19

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Solution

The fourth proportional to 27,710.44, 38,240.51 and 15,135.19 is: 20,886.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,710.44 : 38,240.51 = 15,135.19 : x
  2. Step 2: Convert to fraction form
    27,710.44/38,240.51 = 15,135.19/x
  3. Step 3: Cross multiply
    27,710.44x = 38,240.51 × 15,135.19
  4. Step 4: Simplify right side
    27,710.44x = 578,777,213.27
  5. Step 5: Solve for x
    x = 578,777,213.27/27,710.44
  6. Step 6: Final answer
    x = 20,886.61

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Double scale
Find fourth proportional to 27,711.44, 38,241.89 and 15,136.19
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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.