Home / 28,542.48-42,803.07-9,817.22

Finding the Fourth Proportional to 28,542.48, 42,803.07 and 9,817.22

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Solution

The fourth proportional to 28,542.48, 42,803.07 and 9,817.22 is: 14,722.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.48 : 42,803.07 = 9,817.22 : x
  2. Step 2: Convert to fraction form
    28,542.48/42,803.07 = 9,817.22/x
  3. Step 3: Cross multiply
    28,542.48x = 42,803.07 × 9,817.22
  4. Step 4: Simplify right side
    28,542.48x = 420,206,940.85
  5. Step 5: Solve for x
    x = 420,206,940.85/28,542.48
  6. Step 6: Final answer
    x = 14,722.16

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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.