Home / 22,581.68-31,164.36-13,631.36

Finding the Fourth Proportional to 22,581.68, 31,164.36 and 13,631.36

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Solution

The fourth proportional to 22,581.68, 31,164.36 and 13,631.36 is: 18,812.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.68 : 31,164.36 = 13,631.36 : x
  2. Step 2: Convert to fraction form
    22,581.68/31,164.36 = 13,631.36/x
  3. Step 3: Cross multiply
    22,581.68x = 31,164.36 × 13,631.36
  4. Step 4: Simplify right side
    22,581.68x = 424,812,610.33
  5. Step 5: Solve for x
    x = 424,812,610.33/22,581.68
  6. Step 6: Final answer
    x = 18,812.27

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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.