Home / 21,869.08-32,795.56-7,825.28

Finding the Fourth Proportional to 21,869.08, 32,795.56 and 7,825.28

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Solution

The fourth proportional to 21,869.08, 32,795.56 and 7,825.28 is: 11,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,869.08 : 32,795.56 = 7,825.28 : x
  2. Step 2: Convert to fraction form
    21,869.08/32,795.56 = 7,825.28/x
  3. Step 3: Cross multiply
    21,869.08x = 32,795.56 × 7,825.28
  4. Step 4: Simplify right side
    21,869.08x = 256,634,439.76
  5. Step 5: Solve for x
    x = 256,634,439.76/21,869.08
  6. Step 6: Final answer
    x = 11,735.04

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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.