Home / 21,332.35-31,998.40-5,537.37

Finding the Fourth Proportional to 21,332.35, 31,998.40 and 5,537.37

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Solution

The fourth proportional to 21,332.35, 31,998.40 and 5,537.37 is: 8,306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,332.35 : 31,998.40 = 5,537.37 : x
  2. Step 2: Convert to fraction form
    21,332.35/31,998.40 = 5,537.37/x
  3. Step 3: Cross multiply
    21,332.35x = 31,998.40 × 5,537.37
  4. Step 4: Simplify right side
    21,332.35x = 177,186,980.21
  5. Step 5: Solve for x
    x = 177,186,980.21/21,332.35
  6. Step 6: Final answer
    x = 8,306.02

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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.