Home / 31,599.52-43,616.31-18,690.75

Finding the Fourth Proportional to 31,599.52, 43,616.31 and 18,690.75

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Solution

The fourth proportional to 31,599.52, 43,616.31 and 18,690.75 is: 25,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,599.52 : 43,616.31 = 18,690.75 : x
  2. Step 2: Convert to fraction form
    31,599.52/43,616.31 = 18,690.75/x
  3. Step 3: Cross multiply
    31,599.52x = 43,616.31 × 18,690.75
  4. Step 4: Simplify right side
    31,599.52x = 815,221,476.04
  5. Step 5: Solve for x
    x = 815,221,476.04/31,599.52
  6. Step 6: Final answer
    x = 25,798.54

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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.