Home / 28,219.70-42,329.91-19,452.26

Finding the Fourth Proportional to 28,219.70, 42,329.91 and 19,452.26

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Solution

The fourth proportional to 28,219.70, 42,329.91 and 19,452.26 is: 29,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.70 : 42,329.91 = 19,452.26 : x
  2. Step 2: Convert to fraction form
    28,219.70/42,329.91 = 19,452.26/x
  3. Step 3: Cross multiply
    28,219.70x = 42,329.91 × 19,452.26
  4. Step 4: Simplify right side
    28,219.70x = 823,412,415.10
  5. Step 5: Solve for x
    x = 823,412,415.10/28,219.70
  6. Step 6: Final answer
    x = 29,178.64

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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.