Home / 28,491.17-42,740.82-8,771.36

Finding the Fourth Proportional to 28,491.17, 42,740.82 and 8,771.36

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Solution

The fourth proportional to 28,491.17, 42,740.82 and 8,771.36 is: 13,158.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,491.17 : 42,740.82 = 8,771.36 : x
  2. Step 2: Convert to fraction form
    28,491.17/42,740.82 = 8,771.36/x
  3. Step 3: Cross multiply
    28,491.17x = 42,740.82 × 8,771.36
  4. Step 4: Simplify right side
    28,491.17x = 374,894,905.21
  5. Step 5: Solve for x
    x = 374,894,905.21/28,491.17
  6. Step 6: Final answer
    x = 13,158.29

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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.