Home / 21,249.93-31,874.08-5,667.42

Finding the Fourth Proportional to 21,249.93, 31,874.08 and 5,667.42

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Solution

The fourth proportional to 21,249.93, 31,874.08 and 5,667.42 is: 8,500.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.93 : 31,874.08 = 5,667.42 : x
  2. Step 2: Convert to fraction form
    21,249.93/31,874.08 = 5,667.42/x
  3. Step 3: Cross multiply
    21,249.93x = 31,874.08 × 5,667.42
  4. Step 4: Simplify right side
    21,249.93x = 180,643,798.47
  5. Step 5: Solve for x
    x = 180,643,798.47/21,249.93
  6. Step 6: Final answer
    x = 8,500.91

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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.