Home / 21,759.50-32,588.63-21,160.89

Finding the Fourth Proportional to 21,759.50, 32,588.63 and 21,160.89

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Solution

The fourth proportional to 21,759.50, 32,588.63 and 21,160.89 is: 31,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,759.50 : 32,588.63 = 21,160.89 : x
  2. Step 2: Convert to fraction form
    21,759.50/32,588.63 = 21,160.89/x
  3. Step 3: Cross multiply
    21,759.50x = 32,588.63 × 21,160.89
  4. Step 4: Simplify right side
    21,759.50x = 689,604,414.68
  5. Step 5: Solve for x
    x = 689,604,414.68/21,759.50
  6. Step 6: Final answer
    x = 31,692.11

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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.