Home / 22,119.74-30,513.62-13,160.88

Finding the Fourth Proportional to 22,119.74, 30,513.62 and 13,160.88

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Solution

The fourth proportional to 22,119.74, 30,513.62 and 13,160.88 is: 18,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,119.74 : 30,513.62 = 13,160.88 : x
  2. Step 2: Convert to fraction form
    22,119.74/30,513.62 = 13,160.88/x
  3. Step 3: Cross multiply
    22,119.74x = 30,513.62 × 13,160.88
  4. Step 4: Simplify right side
    22,119.74x = 401,586,091.19
  5. Step 5: Solve for x
    x = 401,586,091.19/22,119.74
  6. Step 6: Final answer
    x = 18,155.10

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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.