Home / 21,516.19-29,692.35-12,084.75

Finding the Fourth Proportional to 21,516.19, 29,692.35 and 12,084.75

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Solution

The fourth proportional to 21,516.19, 29,692.35 and 12,084.75 is: 16,676.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516.19 : 29,692.35 = 12,084.75 : x
  2. Step 2: Convert to fraction form
    21,516.19/29,692.35 = 12,084.75/x
  3. Step 3: Cross multiply
    21,516.19x = 29,692.35 × 12,084.75
  4. Step 4: Simplify right side
    21,516.19x = 358,824,626.66
  5. Step 5: Solve for x
    x = 358,824,626.66/21,516.19
  6. Step 6: Final answer
    x = 16,676.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.