Home / 22,178.29-30,554.05-15,451.75

Finding the Fourth Proportional to 22,178.29, 30,554.05 and 15,451.75

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Solution

The fourth proportional to 22,178.29, 30,554.05 and 15,451.75 is: 21,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.29 : 30,554.05 = 15,451.75 : x
  2. Step 2: Convert to fraction form
    22,178.29/30,554.05 = 15,451.75/x
  3. Step 3: Cross multiply
    22,178.29x = 30,554.05 × 15,451.75
  4. Step 4: Simplify right side
    22,178.29x = 472,113,542.09
  5. Step 5: Solve for x
    x = 472,113,542.09/22,178.29
  6. Step 6: Final answer
    x = 21,287.19

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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.