Home / 28,149.12-42,213.96-10,604.52

Finding the Fourth Proportional to 28,149.12, 42,213.96 and 10,604.52

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Solution

The fourth proportional to 28,149.12, 42,213.96 and 10,604.52 is: 15,903.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.12 : 42,213.96 = 10,604.52 : x
  2. Step 2: Convert to fraction form
    28,149.12/42,213.96 = 10,604.52/x
  3. Step 3: Cross multiply
    28,149.12x = 42,213.96 × 10,604.52
  4. Step 4: Simplify right side
    28,149.12x = 447,658,783.10
  5. Step 5: Solve for x
    x = 447,658,783.10/28,149.12
  6. Step 6: Final answer
    x = 15,903.12

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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.