Home / 19,875.11-27,427.10-10,922.62

Finding the Fourth Proportional to 19,875.11, 27,427.10 and 10,922.62

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Solution

The fourth proportional to 19,875.11, 27,427.10 and 10,922.62 is: 15,072.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.11 : 27,427.10 = 10,922.62 : x
  2. Step 2: Convert to fraction form
    19,875.11/27,427.10 = 10,922.62/x
  3. Step 3: Cross multiply
    19,875.11x = 27,427.10 × 10,922.62
  4. Step 4: Simplify right side
    19,875.11x = 299,575,599.25
  5. Step 5: Solve for x
    x = 299,575,599.25/19,875.11
  6. Step 6: Final answer
    x = 15,072.90

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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.