Home / 21,982.86-32,959.26-10,578.76

Finding the Fourth Proportional to 21,982.86, 32,959.26 and 10,578.76

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Solution

The fourth proportional to 21,982.86, 32,959.26 and 10,578.76 is: 15,860.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.86 : 32,959.26 = 10,578.76 : x
  2. Step 2: Convert to fraction form
    21,982.86/32,959.26 = 10,578.76/x
  3. Step 3: Cross multiply
    21,982.86x = 32,959.26 × 10,578.76
  4. Step 4: Simplify right side
    21,982.86x = 348,668,018.92
  5. Step 5: Solve for x
    x = 348,668,018.92/21,982.86
  6. Step 6: Final answer
    x = 15,860.90

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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.