Home / 22,339.50-30,886.11-21,360.30

Finding the Fourth Proportional to 22,339.50, 30,886.11 and 21,360.30

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Solution

The fourth proportional to 22,339.50, 30,886.11 and 21,360.30 is: 29,532.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,339.50 : 30,886.11 = 21,360.30 : x
  2. Step 2: Convert to fraction form
    22,339.50/30,886.11 = 21,360.30/x
  3. Step 3: Cross multiply
    22,339.50x = 30,886.11 × 21,360.30
  4. Step 4: Simplify right side
    22,339.50x = 659,736,575.43
  5. Step 5: Solve for x
    x = 659,736,575.43/22,339.50
  6. Step 6: Final answer
    x = 29,532.29

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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.