Home / 10,427.82-15,643.26-3,031.32

Finding the Fourth Proportional to 10,427.82, 15,643.26 and 3,031.32

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Solution

The fourth proportional to 10,427.82, 15,643.26 and 3,031.32 is: 4,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.82 : 15,643.26 = 3,031.32 : x
  2. Step 2: Convert to fraction form
    10,427.82/15,643.26 = 3,031.32/x
  3. Step 3: Cross multiply
    10,427.82x = 15,643.26 × 3,031.32
  4. Step 4: Simplify right side
    10,427.82x = 47,419,726.90
  5. Step 5: Solve for x
    x = 47,419,726.90/10,427.82
  6. Step 6: Final answer
    x = 4,547.42

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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.