Home / 21,207.42-29,267.06-11,777.76

Finding the Fourth Proportional to 21,207.42, 29,267.06 and 11,777.76

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Solution

The fourth proportional to 21,207.42, 29,267.06 and 11,777.76 is: 16,253.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.42 : 29,267.06 = 11,777.76 : x
  2. Step 2: Convert to fraction form
    21,207.42/29,267.06 = 11,777.76/x
  3. Step 3: Cross multiply
    21,207.42x = 29,267.06 × 11,777.76
  4. Step 4: Simplify right side
    21,207.42x = 344,700,349.70
  5. Step 5: Solve for x
    x = 344,700,349.70/21,207.42
  6. Step 6: Final answer
    x = 16,253.76

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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.