Home / 21,535-29,717.76-11,974.92

Finding the Fourth Proportional to 21,535, 29,717.76 and 11,974.92

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Solution

The fourth proportional to 21,535, 29,717.76 and 11,974.92 is: 16,525.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,535 : 29,717.76 = 11,974.92 : x
  2. Step 2: Convert to fraction form
    21,535/29,717.76 = 11,974.92/x
  3. Step 3: Cross multiply
    21,535x = 29,717.76 × 11,974.92
  4. Step 4: Simplify right side
    21,535x = 355,867,798.58
  5. Step 5: Solve for x
    x = 355,867,798.58/21,535
  6. Step 6: Final answer
    x = 16,525.09

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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.