Home / 20,157.31-27,820.16-14,510.75

Finding the Fourth Proportional to 20,157.31, 27,820.16 and 14,510.75

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Solution

The fourth proportional to 20,157.31, 27,820.16 and 14,510.75 is: 20,027.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.31 : 27,820.16 = 14,510.75 : x
  2. Step 2: Convert to fraction form
    20,157.31/27,820.16 = 14,510.75/x
  3. Step 3: Cross multiply
    20,157.31x = 27,820.16 × 14,510.75
  4. Step 4: Simplify right side
    20,157.31x = 403,691,229.48
  5. Step 5: Solve for x
    x = 403,691,229.48/20,157.31
  6. Step 6: Final answer
    x = 20,027.04

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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.