Home / 21,340.18-32,015.46-7,108.62

Finding the Fourth Proportional to 21,340.18, 32,015.46 and 7,108.62

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Solution

The fourth proportional to 21,340.18, 32,015.46 and 7,108.62 is: 10,664.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.18 : 32,015.46 = 7,108.62 : x
  2. Step 2: Convert to fraction form
    21,340.18/32,015.46 = 7,108.62/x
  3. Step 3: Cross multiply
    21,340.18x = 32,015.46 × 7,108.62
  4. Step 4: Simplify right side
    21,340.18x = 227,585,739.27
  5. Step 5: Solve for x
    x = 227,585,739.27/21,340.18
  6. Step 6: Final answer
    x = 10,664.66

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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.