Home / 31,280.38-43,204.79-22,769.00

Finding the Fourth Proportional to 31,280.38, 43,204.79 and 22,769.00

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Solution

The fourth proportional to 31,280.38, 43,204.79 and 22,769.00 is: 31,448.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.38 : 43,204.79 = 22,769.00 : x
  2. Step 2: Convert to fraction form
    31,280.38/43,204.79 = 22,769.00/x
  3. Step 3: Cross multiply
    31,280.38x = 43,204.79 × 22,769.00
  4. Step 4: Simplify right side
    31,280.38x = 983,729,866.43
  5. Step 5: Solve for x
    x = 983,729,866.43/31,280.38
  6. Step 6: Final answer
    x = 31,448.78

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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.