Home / 28,144.49-42,174.95-15,647.32

Finding the Fourth Proportional to 28,144.49, 42,174.95 and 15,647.32

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Solution

The fourth proportional to 28,144.49, 42,174.95 and 15,647.32 is: 23,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.49 : 42,174.95 = 15,647.32 : x
  2. Step 2: Convert to fraction form
    28,144.49/42,174.95 = 15,647.32/x
  3. Step 3: Cross multiply
    28,144.49x = 42,174.95 × 15,647.32
  4. Step 4: Simplify right side
    28,144.49x = 659,924,938.63
  5. Step 5: Solve for x
    x = 659,924,938.63/28,144.49
  6. Step 6: Final answer
    x = 23,447.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.