Home / 19,939.59-27,516.96-10,987.02

Finding the Fourth Proportional to 19,939.59, 27,516.96 and 10,987.02

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Solution

The fourth proportional to 19,939.59, 27,516.96 and 10,987.02 is: 15,162.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.59 : 27,516.96 = 10,987.02 : x
  2. Step 2: Convert to fraction form
    19,939.59/27,516.96 = 10,987.02/x
  3. Step 3: Cross multiply
    19,939.59x = 27,516.96 × 10,987.02
  4. Step 4: Simplify right side
    19,939.59x = 302,329,389.86
  5. Step 5: Solve for x
    x = 302,329,389.86/19,939.59
  6. Step 6: Final answer
    x = 15,162.27

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