Home / 22,280.11-30,756.04-15,013.80

Finding the Fourth Proportional to 22,280.11, 30,756.04 and 15,013.80

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Solution

The fourth proportional to 22,280.11, 30,756.04 and 15,013.80 is: 20,725.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.11 : 30,756.04 = 15,013.80 : x
  2. Step 2: Convert to fraction form
    22,280.11/30,756.04 = 15,013.80/x
  3. Step 3: Cross multiply
    22,280.11x = 30,756.04 × 15,013.80
  4. Step 4: Simplify right side
    22,280.11x = 461,764,995.82
  5. Step 5: Solve for x
    x = 461,764,995.82/22,280.11
  6. Step 6: Final answer
    x = 20,725.44

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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.