Home / 21,019.33-31,535.05-6,228.53

Finding the Fourth Proportional to 21,019.33, 31,535.05 and 6,228.53

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Solution

The fourth proportional to 21,019.33, 31,535.05 and 6,228.53 is: 9,344.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.33 : 31,535.05 = 6,228.53 : x
  2. Step 2: Convert to fraction form
    21,019.33/31,535.05 = 6,228.53/x
  3. Step 3: Cross multiply
    21,019.33x = 31,535.05 × 6,228.53
  4. Step 4: Simplify right side
    21,019.33x = 196,417,004.98
  5. Step 5: Solve for x
    x = 196,417,004.98/21,019.33
  6. Step 6: Final answer
    x = 9,344.59

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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.