Home / 28,353.78-42,537.60-8,631.27

Finding the Fourth Proportional to 28,353.78, 42,537.60 and 8,631.27

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Solution

The fourth proportional to 28,353.78, 42,537.60 and 8,631.27 is: 12,949.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.78 : 42,537.60 = 8,631.27 : x
  2. Step 2: Convert to fraction form
    28,353.78/42,537.60 = 8,631.27/x
  3. Step 3: Cross multiply
    28,353.78x = 42,537.60 × 8,631.27
  4. Step 4: Simplify right side
    28,353.78x = 367,153,510.75
  5. Step 5: Solve for x
    x = 367,153,510.75/28,353.78
  6. Step 6: Final answer
    x = 12,949.01

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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.