Home / 19,688.72-29,499.66-11,881.13

Finding the Fourth Proportional to 19,688.72, 29,499.66 and 11,881.13

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Solution

The fourth proportional to 19,688.72, 29,499.66 and 11,881.13 is: 17,801.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.72 : 29,499.66 = 11,881.13 : x
  2. Step 2: Convert to fraction form
    19,688.72/29,499.66 = 11,881.13/x
  3. Step 3: Cross multiply
    19,688.72x = 29,499.66 × 11,881.13
  4. Step 4: Simplify right side
    19,688.72x = 350,489,147.92
  5. Step 5: Solve for x
    x = 350,489,147.92/19,688.72
  6. Step 6: Final answer
    x = 17,801.52

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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.