Home / 31,191.36-43,029.09-22,680.29

Finding the Fourth Proportional to 31,191.36, 43,029.09 and 22,680.29

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Solution

The fourth proportional to 31,191.36, 43,029.09 and 22,680.29 is: 31,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,191.36 : 43,029.09 = 22,680.29 : x
  2. Step 2: Convert to fraction form
    31,191.36/43,029.09 = 22,680.29/x
  3. Step 3: Cross multiply
    31,191.36x = 43,029.09 × 22,680.29
  4. Step 4: Simplify right side
    31,191.36x = 975,912,024.49
  5. Step 5: Solve for x
    x = 975,912,024.49/31,191.36
  6. Step 6: Final answer
    x = 31,287.90

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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.