Home / 21,721.92-32,582.88-7,683.36

Finding the Fourth Proportional to 21,721.92, 32,582.88 and 7,683.36

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Solution

The fourth proportional to 21,721.92, 32,582.88 and 7,683.36 is: 11,525.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,721.92 : 32,582.88 = 7,683.36 : x
  2. Step 2: Convert to fraction form
    21,721.92/32,582.88 = 7,683.36/x
  3. Step 3: Cross multiply
    21,721.92x = 32,582.88 × 7,683.36
  4. Step 4: Simplify right side
    21,721.92x = 250,345,996.88
  5. Step 5: Solve for x
    x = 250,345,996.88/21,721.92
  6. Step 6: Final answer
    x = 11,525.04

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1.5x scale

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.