Home / 25,811-38,690.35-17,491.86

Finding the Fourth Proportional to 25,811, 38,690.35 and 17,491.86

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Solution

The fourth proportional to 25,811, 38,690.35 and 17,491.86 is: 26,220.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811 : 38,690.35 = 17,491.86 : x
  2. Step 2: Convert to fraction form
    25,811/38,690.35 = 17,491.86/x
  3. Step 3: Cross multiply
    25,811x = 38,690.35 × 17,491.86
  4. Step 4: Simplify right side
    25,811x = 676,766,185.55
  5. Step 5: Solve for x
    x = 676,766,185.55/25,811
  6. Step 6: Final answer
    x = 26,220.07

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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.