Home / 21,533.43-29,717.12-11,974.30

Finding the Fourth Proportional to 21,533.43, 29,717.12 and 11,974.30

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Solution

The fourth proportional to 21,533.43, 29,717.12 and 11,974.30 is: 16,525.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533.43 : 29,717.12 = 11,974.30 : x
  2. Step 2: Convert to fraction form
    21,533.43/29,717.12 = 11,974.30/x
  3. Step 3: Cross multiply
    21,533.43x = 29,717.12 × 11,974.30
  4. Step 4: Simplify right side
    21,533.43x = 355,841,710.02
  5. Step 5: Solve for x
    x = 355,841,710.02/21,533.43
  6. Step 6: Final answer
    x = 16,525.08

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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.