Home / 28,327.24-42,499.50-20,447.56

Finding the Fourth Proportional to 28,327.24, 42,499.50 and 20,447.56

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Solution

The fourth proportional to 28,327.24, 42,499.50 and 20,447.56 is: 30,677.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.24 : 42,499.50 = 20,447.56 : x
  2. Step 2: Convert to fraction form
    28,327.24/42,499.50 = 20,447.56/x
  3. Step 3: Cross multiply
    28,327.24x = 42,499.50 × 20,447.56
  4. Step 4: Simplify right side
    28,327.24x = 869,011,076.22
  5. Step 5: Solve for x
    x = 869,011,076.22/28,327.24
  6. Step 6: Final answer
    x = 30,677.58

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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.