Home / 31,229.08-43,084.02-19,896.55

Finding the Fourth Proportional to 31,229.08, 43,084.02 and 19,896.55

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Solution

The fourth proportional to 31,229.08, 43,084.02 and 19,896.55 is: 27,449.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,229.08 : 43,084.02 = 19,896.55 : x
  2. Step 2: Convert to fraction form
    31,229.08/43,084.02 = 19,896.55/x
  3. Step 3: Cross multiply
    31,229.08x = 43,084.02 × 19,896.55
  4. Step 4: Simplify right side
    31,229.08x = 857,223,142.71
  5. Step 5: Solve for x
    x = 857,223,142.71/31,229.08
  6. Step 6: Final answer
    x = 27,449.52

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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.