Home / 27,728.46-38,265.21-15,153.30

Finding the Fourth Proportional to 27,728.46, 38,265.21 and 15,153.30

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Solution

The fourth proportional to 27,728.46, 38,265.21 and 15,153.30 is: 20,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,728.46 : 38,265.21 = 15,153.30 : x
  2. Step 2: Convert to fraction form
    27,728.46/38,265.21 = 15,153.30/x
  3. Step 3: Cross multiply
    27,728.46x = 38,265.21 × 15,153.30
  4. Step 4: Simplify right side
    27,728.46x = 579,844,206.69
  5. Step 5: Solve for x
    x = 579,844,206.69/27,728.46
  6. Step 6: Final answer
    x = 20,911.52

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Half scale
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Double scale
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Similar ratio
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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.