Home / 21,333.06-29,439.63-11,901.42

Finding the Fourth Proportional to 21,333.06, 29,439.63 and 11,901.42

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Solution

The fourth proportional to 21,333.06, 29,439.63 and 11,901.42 is: 16,423.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.06 : 29,439.63 = 11,901.42 : x
  2. Step 2: Convert to fraction form
    21,333.06/29,439.63 = 11,901.42/x
  3. Step 3: Cross multiply
    21,333.06x = 29,439.63 × 11,901.42
  4. Step 4: Simplify right side
    21,333.06x = 350,373,401.27
  5. Step 5: Solve for x
    x = 350,373,401.27/21,333.06
  6. Step 6: Final answer
    x = 16,423.96

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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.