Home / 20,459.61-30,679.70-6,605.37

Finding the Fourth Proportional to 20,459.61, 30,679.70 and 6,605.37

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Solution

The fourth proportional to 20,459.61, 30,679.70 and 6,605.37 is: 9,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459.61 : 30,679.70 = 6,605.37 : x
  2. Step 2: Convert to fraction form
    20,459.61/30,679.70 = 6,605.37/x
  3. Step 3: Cross multiply
    20,459.61x = 30,679.70 × 6,605.37
  4. Step 4: Simplify right side
    20,459.61x = 202,650,736.96
  5. Step 5: Solve for x
    x = 202,650,736.96/20,459.61
  6. Step 6: Final answer
    x = 9,904.92

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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.