Home / 31,264.88-43,159.56-19,949.60

Finding the Fourth Proportional to 31,264.88, 43,159.56 and 19,949.60

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Solution

The fourth proportional to 31,264.88, 43,159.56 and 19,949.60 is: 27,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,264.88 : 43,159.56 = 19,949.60 : x
  2. Step 2: Convert to fraction form
    31,264.88/43,159.56 = 19,949.60/x
  3. Step 3: Cross multiply
    31,264.88x = 43,159.56 × 19,949.60
  4. Step 4: Simplify right side
    31,264.88x = 861,015,958.18
  5. Step 5: Solve for x
    x = 861,015,958.18/31,264.88
  6. Step 6: Final answer
    x = 27,539.40

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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.