Home / 28,003.23-38,591.31-20,031.63

Finding the Fourth Proportional to 28,003.23, 38,591.31 and 20,031.63

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Solution

The fourth proportional to 28,003.23, 38,591.31 and 20,031.63 is: 27,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.23 : 38,591.31 = 20,031.63 : x
  2. Step 2: Convert to fraction form
    28,003.23/38,591.31 = 20,031.63/x
  3. Step 3: Cross multiply
    28,003.23x = 38,591.31 × 20,031.63
  4. Step 4: Simplify right side
    28,003.23x = 773,046,843.14
  5. Step 5: Solve for x
    x = 773,046,843.14/28,003.23
  6. Step 6: Final answer
    x = 27,605.63

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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.