Home / 67,679.04-101,514.24-20,928

Finding the Fourth Proportional to 67,679.04, 101,514.24 and 20,928

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Solution

The fourth proportional to 67,679.04, 101,514.24 and 20,928 is: 31,390.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,679.04 : 101,514.24 = 20,928 : x
  2. Step 2: Convert to fraction form
    67,679.04/101,514.24 = 20,928/x
  3. Step 3: Cross multiply
    67,679.04x = 101,514.24 × 20,928
  4. Step 4: Simplify right side
    67,679.04x = 2,124,490,014.72
  5. Step 5: Solve for x
    x = 2,124,490,014.72/67,679.04
  6. Step 6: Final answer
    x = 31,390.66

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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.