Home / 20,686.53-31,030.80-5,896.47

Finding the Fourth Proportional to 20,686.53, 31,030.80 and 5,896.47

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Solution

The fourth proportional to 20,686.53, 31,030.80 and 5,896.47 is: 8,844.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.53 : 31,030.80 = 5,896.47 : x
  2. Step 2: Convert to fraction form
    20,686.53/31,030.80 = 5,896.47/x
  3. Step 3: Cross multiply
    20,686.53x = 31,030.80 × 5,896.47
  4. Step 4: Simplify right side
    20,686.53x = 182,972,181.28
  5. Step 5: Solve for x
    x = 182,972,181.28/20,686.53
  6. Step 6: Final answer
    x = 8,844.99

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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.