Home / 28,119.15-38,803.24-16,182.90

Finding the Fourth Proportional to 28,119.15, 38,803.24 and 16,182.90

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Solution

The fourth proportional to 28,119.15, 38,803.24 and 16,182.90 is: 22,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,119.15 : 38,803.24 = 16,182.90 : x
  2. Step 2: Convert to fraction form
    28,119.15/38,803.24 = 16,182.90/x
  3. Step 3: Cross multiply
    28,119.15x = 38,803.24 × 16,182.90
  4. Step 4: Simplify right side
    28,119.15x = 627,948,952.60
  5. Step 5: Solve for x
    x = 627,948,952.60/28,119.15
  6. Step 6: Final answer
    x = 22,331.72

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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.