Home / 25,719.51-38,582-8,185.24

Finding the Fourth Proportional to 25,719.51, 38,582 and 8,185.24

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Solution

The fourth proportional to 25,719.51, 38,582 and 8,185.24 is: 12,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,719.51 : 38,582 = 8,185.24 : x
  2. Step 2: Convert to fraction form
    25,719.51/38,582 = 8,185.24/x
  3. Step 3: Cross multiply
    25,719.51x = 38,582 × 8,185.24
  4. Step 4: Simplify right side
    25,719.51x = 315,802,929.68
  5. Step 5: Solve for x
    x = 315,802,929.68/25,719.51
  6. Step 6: Final answer
    x = 12,278.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.