Home / 22,719.34-31,352.70-13,286.08

Finding the Fourth Proportional to 22,719.34, 31,352.70 and 13,286.08

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Solution

The fourth proportional to 22,719.34, 31,352.70 and 13,286.08 is: 18,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.34 : 31,352.70 = 13,286.08 : x
  2. Step 2: Convert to fraction form
    22,719.34/31,352.70 = 13,286.08/x
  3. Step 3: Cross multiply
    22,719.34x = 31,352.70 × 13,286.08
  4. Step 4: Simplify right side
    22,719.34x = 416,554,480.42
  5. Step 5: Solve for x
    x = 416,554,480.42/22,719.34
  6. Step 6: Final answer
    x = 18,334.80

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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.