Home / 28,725.98-43,079.40-12,082.92

Finding the Fourth Proportional to 28,725.98, 43,079.40 and 12,082.92

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Solution

The fourth proportional to 28,725.98, 43,079.40 and 12,082.92 is: 18,120.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.98 : 43,079.40 = 12,082.92 : x
  2. Step 2: Convert to fraction form
    28,725.98/43,079.40 = 12,082.92/x
  3. Step 3: Cross multiply
    28,725.98x = 43,079.40 × 12,082.92
  4. Step 4: Simplify right side
    28,725.98x = 520,524,943.85
  5. Step 5: Solve for x
    x = 520,524,943.85/28,725.98
  6. Step 6: Final answer
    x = 18,120.35

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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.