Home / 25,981.88-35,855.34-15,371.24

Finding the Fourth Proportional to 25,981.88, 35,855.34 and 15,371.24

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Solution

The fourth proportional to 25,981.88, 35,855.34 and 15,371.24 is: 21,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.88 : 35,855.34 = 15,371.24 : x
  2. Step 2: Convert to fraction form
    25,981.88/35,855.34 = 15,371.24/x
  3. Step 3: Cross multiply
    25,981.88x = 35,855.34 × 15,371.24
  4. Step 4: Simplify right side
    25,981.88x = 551,141,036.42
  5. Step 5: Solve for x
    x = 551,141,036.42/25,981.88
  6. Step 6: Final answer
    x = 21,212.52

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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.