Home / 28,326.90-42,500.83-11,688.39

Finding the Fourth Proportional to 28,326.90, 42,500.83 and 11,688.39

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Solution

The fourth proportional to 28,326.90, 42,500.83 and 11,688.39 is: 17,536.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.90 : 42,500.83 = 11,688.39 : x
  2. Step 2: Convert to fraction form
    28,326.90/42,500.83 = 11,688.39/x
  3. Step 3: Cross multiply
    28,326.90x = 42,500.83 × 11,688.39
  4. Step 4: Simplify right side
    28,326.90x = 496,766,276.36
  5. Step 5: Solve for x
    x = 496,766,276.36/28,326.90
  6. Step 6: Final answer
    x = 17,536.91

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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.