Home / 22,620.31-31,215.21-12,549.19

Finding the Fourth Proportional to 22,620.31, 31,215.21 and 12,549.19

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Solution

The fourth proportional to 22,620.31, 31,215.21 and 12,549.19 is: 17,317.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.31 : 31,215.21 = 12,549.19 : x
  2. Step 2: Convert to fraction form
    22,620.31/31,215.21 = 12,549.19/x
  3. Step 3: Cross multiply
    22,620.31x = 31,215.21 × 12,549.19
  4. Step 4: Simplify right side
    22,620.31x = 391,725,601.18
  5. Step 5: Solve for x
    x = 391,725,601.18/22,620.31
  6. Step 6: Final answer
    x = 17,317.43

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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.