Home / 22,620.60-31,216.46-12,549.20

Finding the Fourth Proportional to 22,620.60, 31,216.46 and 12,549.20

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Solution

The fourth proportional to 22,620.60, 31,216.46 and 12,549.20 is: 17,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.60 : 31,216.46 = 12,549.20 : x
  2. Step 2: Convert to fraction form
    22,620.60/31,216.46 = 12,549.20/x
  3. Step 3: Cross multiply
    22,620.60x = 31,216.46 × 12,549.20
  4. Step 4: Simplify right side
    22,620.60x = 391,741,381.00
  5. Step 5: Solve for x
    x = 391,741,381.00/22,620.60
  6. Step 6: Final answer
    x = 17,317.90

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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.