Home / 28,223.32-38,940.30-22,236.40

Finding the Fourth Proportional to 28,223.32, 38,940.30 and 22,236.40

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Solution

The fourth proportional to 28,223.32, 38,940.30 and 22,236.40 is: 30,680.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.32 : 38,940.30 = 22,236.40 : x
  2. Step 2: Convert to fraction form
    28,223.32/38,940.30 = 22,236.40/x
  3. Step 3: Cross multiply
    28,223.32x = 38,940.30 × 22,236.40
  4. Step 4: Simplify right side
    28,223.32x = 865,892,086.92
  5. Step 5: Solve for x
    x = 865,892,086.92/28,223.32
  6. Step 6: Final answer
    x = 30,680.02

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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.