Home / 18,909.05-28,376.33-14,232.52

Finding the Fourth Proportional to 18,909.05, 28,376.33 and 14,232.52

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Solution

The fourth proportional to 18,909.05, 28,376.33 and 14,232.52 is: 21,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.05 : 28,376.33 = 14,232.52 : x
  2. Step 2: Convert to fraction form
    18,909.05/28,376.33 = 14,232.52/x
  3. Step 3: Cross multiply
    18,909.05x = 28,376.33 × 14,232.52
  4. Step 4: Simplify right side
    18,909.05x = 403,866,648.89
  5. Step 5: Solve for x
    x = 403,866,648.89/18,909.05
  6. Step 6: Final answer
    x = 21,358.38

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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.