Home / 28,631.01-42,949.46-9,911.03

Finding the Fourth Proportional to 28,631.01, 42,949.46 and 9,911.03

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Solution

The fourth proportional to 28,631.01, 42,949.46 and 9,911.03 is: 14,867.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.01 : 42,949.46 = 9,911.03 : x
  2. Step 2: Convert to fraction form
    28,631.01/42,949.46 = 9,911.03/x
  3. Step 3: Cross multiply
    28,631.01x = 42,949.46 × 9,911.03
  4. Step 4: Simplify right side
    28,631.01x = 425,673,196.57
  5. Step 5: Solve for x
    x = 425,673,196.57/28,631.01
  6. Step 6: Final answer
    x = 14,867.56

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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.