Home / 20,677.48-31,016.24-5,095.11

Finding the Fourth Proportional to 20,677.48, 31,016.24 and 5,095.11

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Solution

The fourth proportional to 20,677.48, 31,016.24 and 5,095.11 is: 7,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.48 : 31,016.24 = 5,095.11 : x
  2. Step 2: Convert to fraction form
    20,677.48/31,016.24 = 5,095.11/x
  3. Step 3: Cross multiply
    20,677.48x = 31,016.24 × 5,095.11
  4. Step 4: Simplify right side
    20,677.48x = 158,031,154.59
  5. Step 5: Solve for x
    x = 158,031,154.59/20,677.48
  6. Step 6: Final answer
    x = 7,642.67

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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.