Home / 21,362.91-29,480.69-11,803.44

Finding the Fourth Proportional to 21,362.91, 29,480.69 and 11,803.44

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Solution

The fourth proportional to 21,362.91, 29,480.69 and 11,803.44 is: 16,288.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.91 : 29,480.69 = 11,803.44 : x
  2. Step 2: Convert to fraction form
    21,362.91/29,480.69 = 11,803.44/x
  3. Step 3: Cross multiply
    21,362.91x = 29,480.69 × 11,803.44
  4. Step 4: Simplify right side
    21,362.91x = 347,973,695.63
  5. Step 5: Solve for x
    x = 347,973,695.63/21,362.91
  6. Step 6: Final answer
    x = 16,288.69

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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.