Home / 28,011.89-41,981.51-11,352.47

Finding the Fourth Proportional to 28,011.89, 41,981.51 and 11,352.47

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Solution

The fourth proportional to 28,011.89, 41,981.51 and 11,352.47 is: 17,013.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.89 : 41,981.51 = 11,352.47 : x
  2. Step 2: Convert to fraction form
    28,011.89/41,981.51 = 11,352.47/x
  3. Step 3: Cross multiply
    28,011.89x = 41,981.51 × 11,352.47
  4. Step 4: Simplify right side
    28,011.89x = 476,593,651.30
  5. Step 5: Solve for x
    x = 476,593,651.30/28,011.89
  6. Step 6: Final answer
    x = 17,013.98

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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.