Home / 21,630.42-29,850.09-12,071.19

Finding the Fourth Proportional to 21,630.42, 29,850.09 and 12,071.19

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Solution

The fourth proportional to 21,630.42, 29,850.09 and 12,071.19 is: 16,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.42 : 29,850.09 = 12,071.19 : x
  2. Step 2: Convert to fraction form
    21,630.42/29,850.09 = 12,071.19/x
  3. Step 3: Cross multiply
    21,630.42x = 29,850.09 × 12,071.19
  4. Step 4: Simplify right side
    21,630.42x = 360,326,107.91
  5. Step 5: Solve for x
    x = 360,326,107.91/21,630.42
  6. Step 6: Final answer
    x = 16,658.30

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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.