Home / 22,774.80-31,441.60-15,739.04

Finding the Fourth Proportional to 22,774.80, 31,441.60 and 15,739.04

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Solution

The fourth proportional to 22,774.80, 31,441.60 and 15,739.04 is: 21,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,774.80 : 31,441.60 = 15,739.04 : x
  2. Step 2: Convert to fraction form
    22,774.80/31,441.60 = 15,739.04/x
  3. Step 3: Cross multiply
    22,774.80x = 31,441.60 × 15,739.04
  4. Step 4: Simplify right side
    22,774.80x = 494,860,600.06
  5. Step 5: Solve for x
    x = 494,860,600.06/22,774.80
  6. Step 6: Final answer
    x = 21,728.43

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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.