Home / 23,279.16-32,170.86-20,687.16

Finding the Fourth Proportional to 23,279.16, 32,170.86 and 20,687.16

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Solution

The fourth proportional to 23,279.16, 32,170.86 and 20,687.16 is: 28,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,279.16 : 32,170.86 = 20,687.16 : x
  2. Step 2: Convert to fraction form
    23,279.16/32,170.86 = 20,687.16/x
  3. Step 3: Cross multiply
    23,279.16x = 32,170.86 × 20,687.16
  4. Step 4: Simplify right side
    23,279.16x = 665,523,728.16
  5. Step 5: Solve for x
    x = 665,523,728.16/23,279.16
  6. Step 6: Final answer
    x = 28,588.82

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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.