Home / 19,315.38-28,986.05-6,835.35

Finding the Fourth Proportional to 19,315.38, 28,986.05 and 6,835.35

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Solution

The fourth proportional to 19,315.38, 28,986.05 and 6,835.35 is: 10,257.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.38 : 28,986.05 = 6,835.35 : x
  2. Step 2: Convert to fraction form
    19,315.38/28,986.05 = 6,835.35/x
  3. Step 3: Cross multiply
    19,315.38x = 28,986.05 × 6,835.35
  4. Step 4: Simplify right side
    19,315.38x = 198,129,762.69
  5. Step 5: Solve for x
    x = 198,129,762.69/19,315.38
  6. Step 6: Final answer
    x = 10,257.62

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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.