Home / 34,536.11-47,660.36-20,388.96

Finding the Fourth Proportional to 34,536.11, 47,660.36 and 20,388.96

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Solution

The fourth proportional to 34,536.11, 47,660.36 and 20,388.96 is: 28,137.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,536.11 : 47,660.36 = 20,388.96 : x
  2. Step 2: Convert to fraction form
    34,536.11/47,660.36 = 20,388.96/x
  3. Step 3: Cross multiply
    34,536.11x = 47,660.36 × 20,388.96
  4. Step 4: Simplify right side
    34,536.11x = 971,745,071.68
  5. Step 5: Solve for x
    x = 971,745,071.68/34,536.11
  6. Step 6: Final answer
    x = 28,137.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.