Home / 28,731.88-43,089.65-12,095.69

Finding the Fourth Proportional to 28,731.88, 43,089.65 and 12,095.69

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Solution

The fourth proportional to 28,731.88, 43,089.65 and 12,095.69 is: 18,140.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.88 : 43,089.65 = 12,095.69 : x
  2. Step 2: Convert to fraction form
    28,731.88/43,089.65 = 12,095.69/x
  3. Step 3: Cross multiply
    28,731.88x = 43,089.65 × 12,095.69
  4. Step 4: Simplify right side
    28,731.88x = 521,198,988.13
  5. Step 5: Solve for x
    x = 521,198,988.13/28,731.88
  6. Step 6: Final answer
    x = 18,140.10

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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.