Home / 22,213.76-30,667.20-15,150.56

Finding the Fourth Proportional to 22,213.76, 30,667.20 and 15,150.56

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Solution

The fourth proportional to 22,213.76, 30,667.20 and 15,150.56 is: 20,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,213.76 : 30,667.20 = 15,150.56 : x
  2. Step 2: Convert to fraction form
    22,213.76/30,667.20 = 15,150.56/x
  3. Step 3: Cross multiply
    22,213.76x = 30,667.20 × 15,150.56
  4. Step 4: Simplify right side
    22,213.76x = 464,625,253.63
  5. Step 5: Solve for x
    x = 464,625,253.63/22,213.76
  6. Step 6: Final answer
    x = 20,916.10

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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.