Home / 21,838.02-32,759.15-8,687.49

Finding the Fourth Proportional to 21,838.02, 32,759.15 and 8,687.49

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Solution

The fourth proportional to 21,838.02, 32,759.15 and 8,687.49 is: 13,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,838.02 : 32,759.15 = 8,687.49 : x
  2. Step 2: Convert to fraction form
    21,838.02/32,759.15 = 8,687.49/x
  3. Step 3: Cross multiply
    21,838.02x = 32,759.15 × 8,687.49
  4. Step 4: Simplify right side
    21,838.02x = 284,594,744.60
  5. Step 5: Solve for x
    x = 284,594,744.60/21,838.02
  6. Step 6: Final answer
    x = 13,032.08

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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.