Home / 20,269.91-27,972.93-12,716.56

Finding the Fourth Proportional to 20,269.91, 27,972.93 and 12,716.56

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Solution

The fourth proportional to 20,269.91, 27,972.93 and 12,716.56 is: 17,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.91 : 27,972.93 = 12,716.56 : x
  2. Step 2: Convert to fraction form
    20,269.91/27,972.93 = 12,716.56/x
  3. Step 3: Cross multiply
    20,269.91x = 27,972.93 × 12,716.56
  4. Step 4: Simplify right side
    20,269.91x = 355,719,239.27
  5. Step 5: Solve for x
    x = 355,719,239.27/20,269.91
  6. Step 6: Final answer
    x = 17,549.13

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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.