Home / 34,315.12-51,456.24-16,764.40

Finding the Fourth Proportional to 34,315.12, 51,456.24 and 16,764.40

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Solution

The fourth proportional to 34,315.12, 51,456.24 and 16,764.40 is: 25,138.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,315.12 : 51,456.24 = 16,764.40 : x
  2. Step 2: Convert to fraction form
    34,315.12/51,456.24 = 16,764.40/x
  3. Step 3: Cross multiply
    34,315.12x = 51,456.24 × 16,764.40
  4. Step 4: Simplify right side
    34,315.12x = 862,632,989.86
  5. Step 5: Solve for x
    x = 862,632,989.86/34,315.12
  6. Step 6: Final answer
    x = 25,138.57

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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.