Home / 19,689.51-27,172.05-12,034.02

Finding the Fourth Proportional to 19,689.51, 27,172.05 and 12,034.02

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Solution

The fourth proportional to 19,689.51, 27,172.05 and 12,034.02 is: 16,607.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.51 : 27,172.05 = 12,034.02 : x
  2. Step 2: Convert to fraction form
    19,689.51/27,172.05 = 12,034.02/x
  3. Step 3: Cross multiply
    19,689.51x = 27,172.05 × 12,034.02
  4. Step 4: Simplify right side
    19,689.51x = 326,988,956.30
  5. Step 5: Solve for x
    x = 326,988,956.30/19,689.51
  6. Step 6: Final answer
    x = 16,607.27

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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.