Home / 28,913.88-43,359.48-10,189.92

Finding the Fourth Proportional to 28,913.88, 43,359.48 and 10,189.92

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Solution

The fourth proportional to 28,913.88, 43,359.48 and 10,189.92 is: 15,280.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.88 : 43,359.48 = 10,189.92 : x
  2. Step 2: Convert to fraction form
    28,913.88/43,359.48 = 10,189.92/x
  3. Step 3: Cross multiply
    28,913.88x = 43,359.48 × 10,189.92
  4. Step 4: Simplify right side
    28,913.88x = 441,829,632.44
  5. Step 5: Solve for x
    x = 441,829,632.44/28,913.88
  6. Step 6: Final answer
    x = 15,280.88

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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.