Home / 19,185.16-28,742.08-10,427.44

Finding the Fourth Proportional to 19,185.16, 28,742.08 and 10,427.44

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Solution

The fourth proportional to 19,185.16, 28,742.08 and 10,427.44 is: 15,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.16 : 28,742.08 = 10,427.44 : x
  2. Step 2: Convert to fraction form
    19,185.16/28,742.08 = 10,427.44/x
  3. Step 3: Cross multiply
    19,185.16x = 28,742.08 × 10,427.44
  4. Step 4: Simplify right side
    19,185.16x = 299,706,314.68
  5. Step 5: Solve for x
    x = 299,706,314.68/19,185.16
  6. Step 6: Final answer
    x = 15,621.78

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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.