Home / 27,943.21-38,561.89-15,196.51

Finding the Fourth Proportional to 27,943.21, 38,561.89 and 15,196.51

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Solution

The fourth proportional to 27,943.21, 38,561.89 and 15,196.51 is: 20,971.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,943.21 : 38,561.89 = 15,196.51 : x
  2. Step 2: Convert to fraction form
    27,943.21/38,561.89 = 15,196.51/x
  3. Step 3: Cross multiply
    27,943.21x = 38,561.89 × 15,196.51
  4. Step 4: Simplify right side
    27,943.21x = 586,006,294.16
  5. Step 5: Solve for x
    x = 586,006,294.16/27,943.21
  6. Step 6: Final answer
    x = 20,971.33

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Half scale
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Double scale
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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.