Home / 21,960.90-32,929.20-7,162.20

Finding the Fourth Proportional to 21,960.90, 32,929.20 and 7,162.20

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Solution

The fourth proportional to 21,960.90, 32,929.20 and 7,162.20 is: 10,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.90 : 32,929.20 = 7,162.20 : x
  2. Step 2: Convert to fraction form
    21,960.90/32,929.20 = 7,162.20/x
  3. Step 3: Cross multiply
    21,960.90x = 32,929.20 × 7,162.20
  4. Step 4: Simplify right side
    21,960.90x = 235,845,516.24
  5. Step 5: Solve for x
    x = 235,845,516.24/21,960.90
  6. Step 6: Final answer
    x = 10,739.34

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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.