Home / 18,325.68-27,428.40-13,918.92

Finding the Fourth Proportional to 18,325.68, 27,428.40 and 13,918.92

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Solution

The fourth proportional to 18,325.68, 27,428.40 and 13,918.92 is: 20,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.68 : 27,428.40 = 13,918.92 : x
  2. Step 2: Convert to fraction form
    18,325.68/27,428.40 = 13,918.92/x
  3. Step 3: Cross multiply
    18,325.68x = 27,428.40 × 13,918.92
  4. Step 4: Simplify right side
    18,325.68x = 381,773,705.33
  5. Step 5: Solve for x
    x = 381,773,705.33/18,325.68
  6. Step 6: Final answer
    x = 20,832.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.