Home / 28,074.16-42,113.48-16,388.56

Finding the Fourth Proportional to 28,074.16, 42,113.48 and 16,388.56

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Solution

The fourth proportional to 28,074.16, 42,113.48 and 16,388.56 is: 24,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.16 : 42,113.48 = 16,388.56 : x
  2. Step 2: Convert to fraction form
    28,074.16/42,113.48 = 16,388.56/x
  3. Step 3: Cross multiply
    28,074.16x = 42,113.48 × 16,388.56
  4. Step 4: Simplify right side
    28,074.16x = 690,179,293.79
  5. Step 5: Solve for x
    x = 690,179,293.79/28,074.16
  6. Step 6: Final answer
    x = 24,584.15

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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.