Home / 27,962.81-38,589.39-15,216.71

Finding the Fourth Proportional to 27,962.81, 38,589.39 and 15,216.71

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Solution

The fourth proportional to 27,962.81, 38,589.39 and 15,216.71 is: 20,999.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,962.81 : 38,589.39 = 15,216.71 : x
  2. Step 2: Convert to fraction form
    27,962.81/38,589.39 = 15,216.71/x
  3. Step 3: Cross multiply
    27,962.81x = 38,589.39 × 15,216.71
  4. Step 4: Simplify right side
    27,962.81x = 587,203,363.76
  5. Step 5: Solve for x
    x = 587,203,363.76/27,962.81
  6. Step 6: Final answer
    x = 20,999.44

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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.