Home / 22,229.20-30,680.40-14,281.36

Finding the Fourth Proportional to 22,229.20, 30,680.40 and 14,281.36

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Solution

The fourth proportional to 22,229.20, 30,680.40 and 14,281.36 is: 19,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,229.20 : 30,680.40 = 14,281.36 : x
  2. Step 2: Convert to fraction form
    22,229.20/30,680.40 = 14,281.36/x
  3. Step 3: Cross multiply
    22,229.20x = 30,680.40 × 14,281.36
  4. Step 4: Simplify right side
    22,229.20x = 438,157,837.34
  5. Step 5: Solve for x
    x = 438,157,837.34/22,229.20
  6. Step 6: Final answer
    x = 19,710.91

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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.