Home / 20,777.04-31,156.33-5,982.51

Finding the Fourth Proportional to 20,777.04, 31,156.33 and 5,982.51

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Solution

The fourth proportional to 20,777.04, 31,156.33 and 5,982.51 is: 8,971.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777.04 : 31,156.33 = 5,982.51 : x
  2. Step 2: Convert to fraction form
    20,777.04/31,156.33 = 5,982.51/x
  3. Step 3: Cross multiply
    20,777.04x = 31,156.33 × 5,982.51
  4. Step 4: Simplify right side
    20,777.04x = 186,393,055.79
  5. Step 5: Solve for x
    x = 186,393,055.79/20,777.04
  6. Step 6: Final answer
    x = 8,971.11

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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.