Home / 27,962.45-38,588.16-15,387.20

Finding the Fourth Proportional to 27,962.45, 38,588.16 and 15,387.20

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Solution

The fourth proportional to 27,962.45, 38,588.16 and 15,387.20 is: 21,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,962.45 : 38,588.16 = 15,387.20 : x
  2. Step 2: Convert to fraction form
    27,962.45/38,588.16 = 15,387.20/x
  3. Step 3: Cross multiply
    27,962.45x = 38,588.16 × 15,387.20
  4. Step 4: Simplify right side
    27,962.45x = 593,763,542.61
  5. Step 5: Solve for x
    x = 593,763,542.61/27,962.45
  6. Step 6: Final answer
    x = 21,234.32

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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.