Home / 20,314.92-27,972.27-17,782.86

Finding the Fourth Proportional to 20,314.92, 27,972.27 and 17,782.86

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Solution

The fourth proportional to 20,314.92, 27,972.27 and 17,782.86 is: 24,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.92 : 27,972.27 = 17,782.86 : x
  2. Step 2: Convert to fraction form
    20,314.92/27,972.27 = 17,782.86/x
  3. Step 3: Cross multiply
    20,314.92x = 27,972.27 × 17,782.86
  4. Step 4: Simplify right side
    20,314.92x = 497,426,961.29
  5. Step 5: Solve for x
    x = 497,426,961.29/20,314.92
  6. Step 6: Final answer
    x = 24,485.79

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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.