Home / 19,681.32-27,161.82-11,298.36

Finding the Fourth Proportional to 19,681.32, 27,161.82 and 11,298.36

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Solution

The fourth proportional to 19,681.32, 27,161.82 and 11,298.36 is: 15,592.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.32 : 27,161.82 = 11,298.36 : x
  2. Step 2: Convert to fraction form
    19,681.32/27,161.82 = 11,298.36/x
  3. Step 3: Cross multiply
    19,681.32x = 27,161.82 × 11,298.36
  4. Step 4: Simplify right side
    19,681.32x = 306,884,020.62
  5. Step 5: Solve for x
    x = 306,884,020.62/19,681.32
  6. Step 6: Final answer
    x = 15,592.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.