Home / 21,605.94-32,352.84-18,505.85

Finding the Fourth Proportional to 21,605.94, 32,352.84 and 18,505.85

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Solution

The fourth proportional to 21,605.94, 32,352.84 and 18,505.85 is: 27,710.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,605.94 : 32,352.84 = 18,505.85 : x
  2. Step 2: Convert to fraction form
    21,605.94/32,352.84 = 18,505.85/x
  3. Step 3: Cross multiply
    21,605.94x = 32,352.84 × 18,505.85
  4. Step 4: Simplify right side
    21,605.94x = 598,716,642.35
  5. Step 5: Solve for x
    x = 598,716,642.35/21,605.94
  6. Step 6: Final answer
    x = 27,710.74

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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.