Home / 21,825.48-32,756.86-8,687.08

Finding the Fourth Proportional to 21,825.48, 32,756.86 and 8,687.08

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Solution

The fourth proportional to 21,825.48, 32,756.86 and 8,687.08 is: 13,038.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,825.48 : 32,756.86 = 8,687.08 : x
  2. Step 2: Convert to fraction form
    21,825.48/32,756.86 = 8,687.08/x
  3. Step 3: Cross multiply
    21,825.48x = 32,756.86 × 8,687.08
  4. Step 4: Simplify right side
    21,825.48x = 284,561,463.37
  5. Step 5: Solve for x
    x = 284,561,463.37/21,825.48
  6. Step 6: Final answer
    x = 13,038.04

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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.