Home / 25,991.31-35,829.68-18,414.21

Finding the Fourth Proportional to 25,991.31, 35,829.68 and 18,414.21

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Solution

The fourth proportional to 25,991.31, 35,829.68 and 18,414.21 is: 25,384.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.31 : 35,829.68 = 18,414.21 : x
  2. Step 2: Convert to fraction form
    25,991.31/35,829.68 = 18,414.21/x
  3. Step 3: Cross multiply
    25,991.31x = 35,829.68 × 18,414.21
  4. Step 4: Simplify right side
    25,991.31x = 659,775,159.68
  5. Step 5: Solve for x
    x = 659,775,159.68/25,991.31
  6. Step 6: Final answer
    x = 25,384.45

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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.