Home / 31,247.15-43,076.16-22,279.05

Finding the Fourth Proportional to 31,247.15, 43,076.16 and 22,279.05

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Solution

The fourth proportional to 31,247.15, 43,076.16 and 22,279.05 is: 30,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,247.15 : 43,076.16 = 22,279.05 : x
  2. Step 2: Convert to fraction form
    31,247.15/43,076.16 = 22,279.05/x
  3. Step 3: Cross multiply
    31,247.15x = 43,076.16 × 22,279.05
  4. Step 4: Simplify right side
    31,247.15x = 959,695,922.45
  5. Step 5: Solve for x
    x = 959,695,922.45/31,247.15
  6. Step 6: Final answer
    x = 30,713.08

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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.