Home / 22,720.30-31,354.70-12,372.73

Finding the Fourth Proportional to 22,720.30, 31,354.70 and 12,372.73

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Solution

The fourth proportional to 22,720.30, 31,354.70 and 12,372.73 is: 17,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.30 : 31,354.70 = 12,372.73 : x
  2. Step 2: Convert to fraction form
    22,720.30/31,354.70 = 12,372.73/x
  3. Step 3: Cross multiply
    22,720.30x = 31,354.70 × 12,372.73
  4. Step 4: Simplify right side
    22,720.30x = 387,943,080.56
  5. Step 5: Solve for x
    x = 387,943,080.56/22,720.30
  6. Step 6: Final answer
    x = 17,074.74

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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.