Home / 21,840.94-32,716.05-13,904.21

Finding the Fourth Proportional to 21,840.94, 32,716.05 and 13,904.21

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Solution

The fourth proportional to 21,840.94, 32,716.05 and 13,904.21 is: 20,827.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.94 : 32,716.05 = 13,904.21 : x
  2. Step 2: Convert to fraction form
    21,840.94/32,716.05 = 13,904.21/x
  3. Step 3: Cross multiply
    21,840.94x = 32,716.05 × 13,904.21
  4. Step 4: Simplify right side
    21,840.94x = 454,890,753.40
  5. Step 5: Solve for x
    x = 454,890,753.40/21,840.94
  6. Step 6: Final answer
    x = 20,827.43

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1.5x scale

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.