Home / 28,229.33-42,351.12-19,925.57

Finding the Fourth Proportional to 28,229.33, 42,351.12 and 19,925.57

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Solution

The fourth proportional to 28,229.33, 42,351.12 and 19,925.57 is: 29,893.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.33 : 42,351.12 = 19,925.57 : x
  2. Step 2: Convert to fraction form
    28,229.33/42,351.12 = 19,925.57/x
  3. Step 3: Cross multiply
    28,229.33x = 42,351.12 × 19,925.57
  4. Step 4: Simplify right side
    28,229.33x = 843,870,206.14
  5. Step 5: Solve for x
    x = 843,870,206.14/28,229.33
  6. Step 6: Final answer
    x = 29,893.38

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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.