Home / 20,217.78-30,334.77-10,360.62

Finding the Fourth Proportional to 20,217.78, 30,334.77 and 10,360.62

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Solution

The fourth proportional to 20,217.78, 30,334.77 and 10,360.62 is: 15,545.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.78 : 30,334.77 = 10,360.62 : x
  2. Step 2: Convert to fraction form
    20,217.78/30,334.77 = 10,360.62/x
  3. Step 3: Cross multiply
    20,217.78x = 30,334.77 × 10,360.62
  4. Step 4: Simplify right side
    20,217.78x = 314,287,024.76
  5. Step 5: Solve for x
    x = 314,287,024.76/20,217.78
  6. Step 6: Final answer
    x = 15,545.08

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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.