Home / 21,101.42-29,122.98-12,148.04

Finding the Fourth Proportional to 21,101.42, 29,122.98 and 12,148.04

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Solution

The fourth proportional to 21,101.42, 29,122.98 and 12,148.04 is: 16,766.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101.42 : 29,122.98 = 12,148.04 : x
  2. Step 2: Convert to fraction form
    21,101.42/29,122.98 = 12,148.04/x
  3. Step 3: Cross multiply
    21,101.42x = 29,122.98 × 12,148.04
  4. Step 4: Simplify right side
    21,101.42x = 353,787,125.96
  5. Step 5: Solve for x
    x = 353,787,125.96/21,101.42
  6. Step 6: Final answer
    x = 16,766.03

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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.