Home / 22,651.80-31,257.24-12,579.72

Finding the Fourth Proportional to 22,651.80, 31,257.24 and 12,579.72

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Solution

The fourth proportional to 22,651.80, 31,257.24 and 12,579.72 is: 17,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,651.80 : 31,257.24 = 12,579.72 : x
  2. Step 2: Convert to fraction form
    22,651.80/31,257.24 = 12,579.72/x
  3. Step 3: Cross multiply
    22,651.80x = 31,257.24 × 12,579.72
  4. Step 4: Simplify right side
    22,651.80x = 393,207,327.17
  5. Step 5: Solve for x
    x = 393,207,327.17/22,651.80
  6. Step 6: Final answer
    x = 17,358.77

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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.