Home / 21,035.62-31,552.66-8,555.29

Finding the Fourth Proportional to 21,035.62, 31,552.66 and 8,555.29

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Solution

The fourth proportional to 21,035.62, 31,552.66 and 8,555.29 is: 12,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,035.62 : 31,552.66 = 8,555.29 : x
  2. Step 2: Convert to fraction form
    21,035.62/31,552.66 = 8,555.29/x
  3. Step 3: Cross multiply
    21,035.62x = 31,552.66 × 8,555.29
  4. Step 4: Simplify right side
    21,035.62x = 269,942,156.57
  5. Step 5: Solve for x
    x = 269,942,156.57/21,035.62
  6. Step 6: Final answer
    x = 12,832.62

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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.