Home / 22,157.28-30,576.29-13,200.13

Finding the Fourth Proportional to 22,157.28, 30,576.29 and 13,200.13

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Solution

The fourth proportional to 22,157.28, 30,576.29 and 13,200.13 is: 18,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,157.28 : 30,576.29 = 13,200.13 : x
  2. Step 2: Convert to fraction form
    22,157.28/30,576.29 = 13,200.13/x
  3. Step 3: Cross multiply
    22,157.28x = 30,576.29 × 13,200.13
  4. Step 4: Simplify right side
    22,157.28x = 403,610,975.14
  5. Step 5: Solve for x
    x = 403,610,975.14/22,157.28
  6. Step 6: Final answer
    x = 18,215.73

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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.