Home / 21,719.72-32,578.90-6,929.52

Finding the Fourth Proportional to 21,719.72, 32,578.90 and 6,929.52

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Solution

The fourth proportional to 21,719.72, 32,578.90 and 6,929.52 is: 10,394.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.72 : 32,578.90 = 6,929.52 : x
  2. Step 2: Convert to fraction form
    21,719.72/32,578.90 = 6,929.52/x
  3. Step 3: Cross multiply
    21,719.72x = 32,578.90 × 6,929.52
  4. Step 4: Simplify right side
    21,719.72x = 225,756,139.13
  5. Step 5: Solve for x
    x = 225,756,139.13/21,719.72
  6. Step 6: Final answer
    x = 10,394.06

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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.