Home / 19,926.43-29,891.48-5,135.40

Finding the Fourth Proportional to 19,926.43, 29,891.48 and 5,135.40

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Solution

The fourth proportional to 19,926.43, 29,891.48 and 5,135.40 is: 7,703.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,926.43 : 29,891.48 = 5,135.40 : x
  2. Step 2: Convert to fraction form
    19,926.43/29,891.48 = 5,135.40/x
  3. Step 3: Cross multiply
    19,926.43x = 29,891.48 × 5,135.40
  4. Step 4: Simplify right side
    19,926.43x = 153,504,680.72
  5. Step 5: Solve for x
    x = 153,504,680.72/19,926.43
  6. Step 6: Final answer
    x = 7,703.57

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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.