Home / 27,697.37-38,222.17-15,122.12

Finding the Fourth Proportional to 27,697.37, 38,222.17 and 15,122.12

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Solution

The fourth proportional to 27,697.37, 38,222.17 and 15,122.12 is: 20,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,697.37 : 38,222.17 = 15,122.12 : x
  2. Step 2: Convert to fraction form
    27,697.37/38,222.17 = 15,122.12/x
  3. Step 3: Cross multiply
    27,697.37x = 38,222.17 × 15,122.12
  4. Step 4: Simplify right side
    27,697.37x = 578,000,241.40
  5. Step 5: Solve for x
    x = 578,000,241.40/27,697.37
  6. Step 6: Final answer
    x = 20,868.42

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Half scale
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Double scale
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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.