Home / 21,333.40-29,439.98-11,901.94

Finding the Fourth Proportional to 21,333.40, 29,439.98 and 11,901.94

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Solution

The fourth proportional to 21,333.40, 29,439.98 and 11,901.94 is: 16,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.40 : 29,439.98 = 11,901.94 : x
  2. Step 2: Convert to fraction form
    21,333.40/29,439.98 = 11,901.94/x
  3. Step 3: Cross multiply
    21,333.40x = 29,439.98 × 11,901.94
  4. Step 4: Simplify right side
    21,333.40x = 350,392,875.56
  5. Step 5: Solve for x
    x = 350,392,875.56/21,333.40
  6. Step 6: Final answer
    x = 16,424.61

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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.