Home / 19,401.96-29,103.12-7,718.16

Finding the Fourth Proportional to 19,401.96, 29,103.12 and 7,718.16

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Solution

The fourth proportional to 19,401.96, 29,103.12 and 7,718.16 is: 11,577.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.96 : 29,103.12 = 7,718.16 : x
  2. Step 2: Convert to fraction form
    19,401.96/29,103.12 = 7,718.16/x
  3. Step 3: Cross multiply
    19,401.96x = 29,103.12 × 7,718.16
  4. Step 4: Simplify right side
    19,401.96x = 224,622,536.66
  5. Step 5: Solve for x
    x = 224,622,536.66/19,401.96
  6. Step 6: Final answer
    x = 11,577.31

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Double scale
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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.