Home / 28,448.36-42,658.50-8,722.16

Finding the Fourth Proportional to 28,448.36, 42,658.50 and 8,722.16

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Solution

The fourth proportional to 28,448.36, 42,658.50 and 8,722.16 is: 13,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,448.36 : 42,658.50 = 8,722.16 : x
  2. Step 2: Convert to fraction form
    28,448.36/42,658.50 = 8,722.16/x
  3. Step 3: Cross multiply
    28,448.36x = 42,658.50 × 8,722.16
  4. Step 4: Simplify right side
    28,448.36x = 372,074,262.36
  5. Step 5: Solve for x
    x = 372,074,262.36/28,448.36
  6. Step 6: Final answer
    x = 13,078.94

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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.