Home / 19,427.16-29,135.70-5,388.42

Finding the Fourth Proportional to 19,427.16, 29,135.70 and 5,388.42

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Solution

The fourth proportional to 19,427.16, 29,135.70 and 5,388.42 is: 8,081.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427.16 : 29,135.70 = 5,388.42 : x
  2. Step 2: Convert to fraction form
    19,427.16/29,135.70 = 5,388.42/x
  3. Step 3: Cross multiply
    19,427.16x = 29,135.70 × 5,388.42
  4. Step 4: Simplify right side
    19,427.16x = 156,995,388.59
  5. Step 5: Solve for x
    x = 156,995,388.59/19,427.16
  6. Step 6: Final answer
    x = 8,081.23

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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.