Home / 18,637.44-27,930.72-10,305.12

Finding the Fourth Proportional to 18,637.44, 27,930.72 and 10,305.12

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Solution

The fourth proportional to 18,637.44, 27,930.72 and 10,305.12 is: 15,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.44 : 27,930.72 = 10,305.12 : x
  2. Step 2: Convert to fraction form
    18,637.44/27,930.72 = 10,305.12/x
  3. Step 3: Cross multiply
    18,637.44x = 27,930.72 × 10,305.12
  4. Step 4: Simplify right side
    18,637.44x = 287,829,421.29
  5. Step 5: Solve for x
    x = 287,829,421.29/18,637.44
  6. Step 6: Final answer
    x = 15,443.61

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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.