Home / 21,165.68-29,208-11,733.92

Finding the Fourth Proportional to 21,165.68, 29,208 and 11,733.92

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Solution

The fourth proportional to 21,165.68, 29,208 and 11,733.92 is: 16,192.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,165.68 : 29,208 = 11,733.92 : x
  2. Step 2: Convert to fraction form
    21,165.68/29,208 = 11,733.92/x
  3. Step 3: Cross multiply
    21,165.68x = 29,208 × 11,733.92
  4. Step 4: Simplify right side
    21,165.68x = 342,724,335.36
  5. Step 5: Solve for x
    x = 342,724,335.36/21,165.68
  6. Step 6: Final answer
    x = 16,192.46

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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.