Home / 28,020.30-38,630.82-23,222.25

Finding the Fourth Proportional to 28,020.30, 38,630.82 and 23,222.25

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Solution

The fourth proportional to 28,020.30, 38,630.82 and 23,222.25 is: 32,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.30 : 38,630.82 = 23,222.25 : x
  2. Step 2: Convert to fraction form
    28,020.30/38,630.82 = 23,222.25/x
  3. Step 3: Cross multiply
    28,020.30x = 38,630.82 × 23,222.25
  4. Step 4: Simplify right side
    28,020.30x = 897,094,559.75
  5. Step 5: Solve for x
    x = 897,094,559.75/28,020.30
  6. Step 6: Final answer
    x = 32,015.88

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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.