Home / 25,687.67-35,426.57-19,731.74

Finding the Fourth Proportional to 25,687.67, 35,426.57 and 19,731.74

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Solution

The fourth proportional to 25,687.67, 35,426.57 and 19,731.74 is: 27,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,687.67 : 35,426.57 = 19,731.74 : x
  2. Step 2: Convert to fraction form
    25,687.67/35,426.57 = 19,731.74/x
  3. Step 3: Cross multiply
    25,687.67x = 35,426.57 × 19,731.74
  4. Step 4: Simplify right side
    25,687.67x = 699,027,592.54
  5. Step 5: Solve for x
    x = 699,027,592.54/25,687.67
  6. Step 6: Final answer
    x = 27,212.58

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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.