Home / 21,233.78-29,303.01-11,803.22

Finding the Fourth Proportional to 21,233.78, 29,303.01 and 11,803.22

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Solution

The fourth proportional to 21,233.78, 29,303.01 and 11,803.22 is: 16,288.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.78 : 29,303.01 = 11,803.22 : x
  2. Step 2: Convert to fraction form
    21,233.78/29,303.01 = 11,803.22/x
  3. Step 3: Cross multiply
    21,233.78x = 29,303.01 × 11,803.22
  4. Step 4: Simplify right side
    21,233.78x = 345,869,873.69
  5. Step 5: Solve for x
    x = 345,869,873.69/21,233.78
  6. Step 6: Final answer
    x = 16,288.66

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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.