Home / 21,828.79-32,743.47-7,037.80

Finding the Fourth Proportional to 21,828.79, 32,743.47 and 7,037.80

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Solution

The fourth proportional to 21,828.79, 32,743.47 and 7,037.80 is: 10,556.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.79 : 32,743.47 = 7,037.80 : x
  2. Step 2: Convert to fraction form
    21,828.79/32,743.47 = 7,037.80/x
  3. Step 3: Cross multiply
    21,828.79x = 32,743.47 × 7,037.80
  4. Step 4: Simplify right side
    21,828.79x = 230,441,993.17
  5. Step 5: Solve for x
    x = 230,441,993.17/21,828.79
  6. Step 6: Final answer
    x = 10,556.79

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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.