Home / 28,073.28-38,743.98-16,137.12

Finding the Fourth Proportional to 28,073.28, 38,743.98 and 16,137.12

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Solution

The fourth proportional to 28,073.28, 38,743.98 and 16,137.12 is: 22,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.28 : 38,743.98 = 16,137.12 : x
  2. Step 2: Convert to fraction form
    28,073.28/38,743.98 = 16,137.12/x
  3. Step 3: Cross multiply
    28,073.28x = 38,743.98 × 16,137.12
  4. Step 4: Simplify right side
    28,073.28x = 625,216,254.54
  5. Step 5: Solve for x
    x = 625,216,254.54/28,073.28
  6. Step 6: Final answer
    x = 22,270.87

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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.