Home / 22,280.13-30,750.22-12,720.41

Finding the Fourth Proportional to 22,280.13, 30,750.22 and 12,720.41

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Solution

The fourth proportional to 22,280.13, 30,750.22 and 12,720.41 is: 17,556.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.13 : 30,750.22 = 12,720.41 : x
  2. Step 2: Convert to fraction form
    22,280.13/30,750.22 = 12,720.41/x
  3. Step 3: Cross multiply
    22,280.13x = 30,750.22 × 12,720.41
  4. Step 4: Simplify right side
    22,280.13x = 391,155,405.99
  5. Step 5: Solve for x
    x = 391,155,405.99/22,280.13
  6. Step 6: Final answer
    x = 17,556.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.