Home / 20,852.48-31,274.98-10,319.11

Finding the Fourth Proportional to 20,852.48, 31,274.98 and 10,319.11

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Solution

The fourth proportional to 20,852.48, 31,274.98 and 10,319.11 is: 15,476.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.48 : 31,274.98 = 10,319.11 : x
  2. Step 2: Convert to fraction form
    20,852.48/31,274.98 = 10,319.11/x
  3. Step 3: Cross multiply
    20,852.48x = 31,274.98 × 10,319.11
  4. Step 4: Simplify right side
    20,852.48x = 322,729,958.87
  5. Step 5: Solve for x
    x = 322,729,958.87/20,852.48
  6. Step 6: Final answer
    x = 15,476.81

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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.