Home / 20,751.17-31,108.26-7,600.46

Finding the Fourth Proportional to 20,751.17, 31,108.26 and 7,600.46

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Solution

The fourth proportional to 20,751.17, 31,108.26 and 7,600.46 is: 11,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,751.17 : 31,108.26 = 7,600.46 : x
  2. Step 2: Convert to fraction form
    20,751.17/31,108.26 = 7,600.46/x
  3. Step 3: Cross multiply
    20,751.17x = 31,108.26 × 7,600.46
  4. Step 4: Simplify right side
    20,751.17x = 236,437,199.86
  5. Step 5: Solve for x
    x = 236,437,199.86/20,751.17
  6. Step 6: Final answer
    x = 11,393.92

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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.