Home / 20,996.49-31,500.15-7,848.96

Finding the Fourth Proportional to 20,996.49, 31,500.15 and 7,848.96

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Solution

The fourth proportional to 20,996.49, 31,500.15 and 7,848.96 is: 11,775.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996.49 : 31,500.15 = 7,848.96 : x
  2. Step 2: Convert to fraction form
    20,996.49/31,500.15 = 7,848.96/x
  3. Step 3: Cross multiply
    20,996.49x = 31,500.15 × 7,848.96
  4. Step 4: Simplify right side
    20,996.49x = 247,243,417.34
  5. Step 5: Solve for x
    x = 247,243,417.34/20,996.49
  6. Step 6: Final answer
    x = 11,775.46

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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.