Home / 19,680.03-29,526.42-11,781.31

Finding the Fourth Proportional to 19,680.03, 29,526.42 and 11,781.31

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Solution

The fourth proportional to 19,680.03, 29,526.42 and 11,781.31 is: 17,675.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.03 : 29,526.42 = 11,781.31 : x
  2. Step 2: Convert to fraction form
    19,680.03/29,526.42 = 11,781.31/x
  3. Step 3: Cross multiply
    19,680.03x = 29,526.42 × 11,781.31
  4. Step 4: Simplify right side
    19,680.03x = 347,859,907.21
  5. Step 5: Solve for x
    x = 347,859,907.21/19,680.03
  6. Step 6: Final answer
    x = 17,675.79

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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.