Home / 28,148.06-38,799.65-22,170.26

Finding the Fourth Proportional to 28,148.06, 38,799.65 and 22,170.26

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Solution

The fourth proportional to 28,148.06, 38,799.65 and 22,170.26 is: 30,559.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.06 : 38,799.65 = 22,170.26 : x
  2. Step 2: Convert to fraction form
    28,148.06/38,799.65 = 22,170.26/x
  3. Step 3: Cross multiply
    28,148.06x = 38,799.65 × 22,170.26
  4. Step 4: Simplify right side
    28,148.06x = 860,198,189.84
  5. Step 5: Solve for x
    x = 860,198,189.84/28,148.06
  6. Step 6: Final answer
    x = 30,559.77

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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.