Home / 28,941.75-39,972.42-19,493.91

Finding the Fourth Proportional to 28,941.75, 39,972.42 and 19,493.91

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Solution

The fourth proportional to 28,941.75, 39,972.42 and 19,493.91 is: 26,923.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.75 : 39,972.42 = 19,493.91 : x
  2. Step 2: Convert to fraction form
    28,941.75/39,972.42 = 19,493.91/x
  3. Step 3: Cross multiply
    28,941.75x = 39,972.42 × 19,493.91
  4. Step 4: Simplify right side
    28,941.75x = 779,218,757.96
  5. Step 5: Solve for x
    x = 779,218,757.96/28,941.75
  6. Step 6: Final answer
    x = 26,923.69

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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.