Home / 28,881.08-43,326.54-12,876.42

Finding the Fourth Proportional to 28,881.08, 43,326.54 and 12,876.42

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Solution

The fourth proportional to 28,881.08, 43,326.54 and 12,876.42 is: 19,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,881.08 : 43,326.54 = 12,876.42 : x
  2. Step 2: Convert to fraction form
    28,881.08/43,326.54 = 12,876.42/x
  3. Step 3: Cross multiply
    28,881.08x = 43,326.54 × 12,876.42
  4. Step 4: Simplify right side
    28,881.08x = 557,890,807.55
  5. Step 5: Solve for x
    x = 557,890,807.55/28,881.08
  6. Step 6: Final answer
    x = 19,316.83

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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.