Home / 31,837.55-47,693.28-21,817.68

Finding the Fourth Proportional to 31,837.55, 47,693.28 and 21,817.68

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Solution

The fourth proportional to 31,837.55, 47,693.28 and 21,817.68 is: 32,683.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,837.55 : 47,693.28 = 21,817.68 : x
  2. Step 2: Convert to fraction form
    31,837.55/47,693.28 = 21,817.68/x
  3. Step 3: Cross multiply
    31,837.55x = 47,693.28 × 21,817.68
  4. Step 4: Simplify right side
    31,837.55x = 1,040,556,721.19
  5. Step 5: Solve for x
    x = 1,040,556,721.19/31,837.55
  6. Step 6: Final answer
    x = 32,683.32

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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.