Home / 21,207.67-29,267.90-11,776.30

Finding the Fourth Proportional to 21,207.67, 29,267.90 and 11,776.30

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Solution

The fourth proportional to 21,207.67, 29,267.90 and 11,776.30 is: 16,252.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.67 : 29,267.90 = 11,776.30 : x
  2. Step 2: Convert to fraction form
    21,207.67/29,267.90 = 11,776.30/x
  3. Step 3: Cross multiply
    21,207.67x = 29,267.90 × 11,776.30
  4. Step 4: Simplify right side
    21,207.67x = 344,667,570.77
  5. Step 5: Solve for x
    x = 344,667,570.77/21,207.67
  6. Step 6: Final answer
    x = 16,252.02

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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.