Home / 38,689.55-58,015.18-13,725.85

Finding the Fourth Proportional to 38,689.55, 58,015.18 and 13,725.85

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Solution

The fourth proportional to 38,689.55, 58,015.18 and 13,725.85 is: 20,581.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.55 : 58,015.18 = 13,725.85 : x
  2. Step 2: Convert to fraction form
    38,689.55/58,015.18 = 13,725.85/x
  3. Step 3: Cross multiply
    38,689.55x = 58,015.18 × 13,725.85
  4. Step 4: Simplify right side
    38,689.55x = 796,307,658.40
  5. Step 5: Solve for x
    x = 796,307,658.40/38,689.55
  6. Step 6: Final answer
    x = 20,581.98

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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.