Home / 21,203.40-29,260.83-11,644.20

Finding the Fourth Proportional to 21,203.40, 29,260.83 and 11,644.20

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Solution

The fourth proportional to 21,203.40, 29,260.83 and 11,644.20 is: 16,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.40 : 29,260.83 = 11,644.20 : x
  2. Step 2: Convert to fraction form
    21,203.40/29,260.83 = 11,644.20/x
  3. Step 3: Cross multiply
    21,203.40x = 29,260.83 × 11,644.20
  4. Step 4: Simplify right side
    21,203.40x = 340,718,956.69
  5. Step 5: Solve for x
    x = 340,718,956.69/21,203.40
  6. Step 6: Final answer
    x = 16,069.07

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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.