Home / 21,505.76-32,224.08-17,773.28

Finding the Fourth Proportional to 21,505.76, 32,224.08 and 17,773.28

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Solution

The fourth proportional to 21,505.76, 32,224.08 and 17,773.28 is: 26,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.76 : 32,224.08 = 17,773.28 : x
  2. Step 2: Convert to fraction form
    21,505.76/32,224.08 = 17,773.28/x
  3. Step 3: Cross multiply
    21,505.76x = 32,224.08 × 17,773.28
  4. Step 4: Simplify right side
    21,505.76x = 572,727,596.58
  5. Step 5: Solve for x
    x = 572,727,596.58/21,505.76
  6. Step 6: Final answer
    x = 26,631.36

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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.