Home / 53,081.28-79,621.92-18,021.24

Finding the Fourth Proportional to 53,081.28, 79,621.92 and 18,021.24

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Solution

The fourth proportional to 53,081.28, 79,621.92 and 18,021.24 is: 27,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,081.28 : 79,621.92 = 18,021.24 : x
  2. Step 2: Convert to fraction form
    53,081.28/79,621.92 = 18,021.24/x
  3. Step 3: Cross multiply
    53,081.28x = 79,621.92 × 18,021.24
  4. Step 4: Simplify right side
    53,081.28x = 1,434,885,729.58
  5. Step 5: Solve for x
    x = 1,434,885,729.58/53,081.28
  6. Step 6: Final answer
    x = 27,031.86

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.