Home / 25,891.32-35,729.04-15,816.24

Finding the Fourth Proportional to 25,891.32, 35,729.04 and 15,816.24

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Solution

The fourth proportional to 25,891.32, 35,729.04 and 15,816.24 is: 21,825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,891.32 : 35,729.04 = 15,816.24 : x
  2. Step 2: Convert to fraction form
    25,891.32/35,729.04 = 15,816.24/x
  3. Step 3: Cross multiply
    25,891.32x = 35,729.04 × 15,816.24
  4. Step 4: Simplify right side
    25,891.32x = 565,099,071.61
  5. Step 5: Solve for x
    x = 565,099,071.61/25,891.32
  6. Step 6: Final answer
    x = 21,825.81

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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.