Home / 21,835.99-32,591.97-18,821.12

Finding the Fourth Proportional to 21,835.99, 32,591.97 and 18,821.12

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Solution

The fourth proportional to 21,835.99, 32,591.97 and 18,821.12 is: 28,092.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,835.99 : 32,591.97 = 18,821.12 : x
  2. Step 2: Convert to fraction form
    21,835.99/32,591.97 = 18,821.12/x
  3. Step 3: Cross multiply
    21,835.99x = 32,591.97 × 18,821.12
  4. Step 4: Simplify right side
    21,835.99x = 613,417,378.41
  5. Step 5: Solve for x
    x = 613,417,378.41/21,835.99
  6. Step 6: Final answer
    x = 28,092.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.