Home / 21,110.32-31,663.66-6,322.56

Finding the Fourth Proportional to 21,110.32, 31,663.66 and 6,322.56

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Solution

The fourth proportional to 21,110.32, 31,663.66 and 6,322.56 is: 9,483.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,110.32 : 31,663.66 = 6,322.56 : x
  2. Step 2: Convert to fraction form
    21,110.32/31,663.66 = 6,322.56/x
  3. Step 3: Cross multiply
    21,110.32x = 31,663.66 × 6,322.56
  4. Step 4: Simplify right side
    21,110.32x = 200,195,267.48
  5. Step 5: Solve for x
    x = 200,195,267.48/21,110.32
  6. Step 6: Final answer
    x = 9,483.29

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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.