Home / 28,320.48-42,463.84-10,791.68

Finding the Fourth Proportional to 28,320.48, 42,463.84 and 10,791.68

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Solution

The fourth proportional to 28,320.48, 42,463.84 and 10,791.68 is: 16,181.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.48 : 42,463.84 = 10,791.68 : x
  2. Step 2: Convert to fraction form
    28,320.48/42,463.84 = 10,791.68/x
  3. Step 3: Cross multiply
    28,320.48x = 42,463.84 × 10,791.68
  4. Step 4: Simplify right side
    28,320.48x = 458,256,172.85
  5. Step 5: Solve for x
    x = 458,256,172.85/28,320.48
  6. Step 6: Final answer
    x = 16,181.09

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1.5x scale

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.