Home / 22,257.77-30,740.78-15,171.89

Finding the Fourth Proportional to 22,257.77, 30,740.78 and 15,171.89

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Solution

The fourth proportional to 22,257.77, 30,740.78 and 15,171.89 is: 20,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,257.77 : 30,740.78 = 15,171.89 : x
  2. Step 2: Convert to fraction form
    22,257.77/30,740.78 = 15,171.89/x
  3. Step 3: Cross multiply
    22,257.77x = 30,740.78 × 15,171.89
  4. Step 4: Simplify right side
    22,257.77x = 466,395,616.90
  5. Step 5: Solve for x
    x = 466,395,616.90/22,257.77
  6. Step 6: Final answer
    x = 20,954.29

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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.