Home / 28,144.33-42,228.30-12,341.19

Finding the Fourth Proportional to 28,144.33, 42,228.30 and 12,341.19

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Solution

The fourth proportional to 28,144.33, 42,228.30 and 12,341.19 is: 18,516.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.33 : 42,228.30 = 12,341.19 : x
  2. Step 2: Convert to fraction form
    28,144.33/42,228.30 = 12,341.19/x
  3. Step 3: Cross multiply
    28,144.33x = 42,228.30 × 12,341.19
  4. Step 4: Simplify right side
    28,144.33x = 521,147,678.31
  5. Step 5: Solve for x
    x = 521,147,678.31/28,144.33
  6. Step 6: Final answer
    x = 18,516.97

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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.