Home / 25,991.32-35,862.78-15,382.36

Finding the Fourth Proportional to 25,991.32, 35,862.78 and 15,382.36

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Solution

The fourth proportional to 25,991.32, 35,862.78 and 15,382.36 is: 21,224.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.32 : 35,862.78 = 15,382.36 : x
  2. Step 2: Convert to fraction form
    25,991.32/35,862.78 = 15,382.36/x
  3. Step 3: Cross multiply
    25,991.32x = 35,862.78 × 15,382.36
  4. Step 4: Simplify right side
    25,991.32x = 551,654,192.56
  5. Step 5: Solve for x
    x = 551,654,192.56/25,991.32
  6. Step 6: Final answer
    x = 21,224.55

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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.