Home / 39,971.88-59,868.72-28,249.56

Finding the Fourth Proportional to 39,971.88, 59,868.72 and 28,249.56

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Solution

The fourth proportional to 39,971.88, 59,868.72 and 28,249.56 is: 42,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,971.88 : 59,868.72 = 28,249.56 : x
  2. Step 2: Convert to fraction form
    39,971.88/59,868.72 = 28,249.56/x
  3. Step 3: Cross multiply
    39,971.88x = 59,868.72 × 28,249.56
  4. Step 4: Simplify right side
    39,971.88x = 1,691,264,997.76
  5. Step 5: Solve for x
    x = 1,691,264,997.76/39,971.88
  6. Step 6: Final answer
    x = 42,311.37

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1.5x scale

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.