Home / 28,836.61-43,254-12,192.12

Finding the Fourth Proportional to 28,836.61, 43,254 and 12,192.12

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Solution

The fourth proportional to 28,836.61, 43,254 and 12,192.12 is: 18,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.61 : 43,254 = 12,192.12 : x
  2. Step 2: Convert to fraction form
    28,836.61/43,254 = 12,192.12/x
  3. Step 3: Cross multiply
    28,836.61x = 43,254 × 12,192.12
  4. Step 4: Simplify right side
    28,836.61x = 527,357,958.48
  5. Step 5: Solve for x
    x = 527,357,958.48/28,836.61
  6. Step 6: Final answer
    x = 18,287.79

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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.