Home / 21,669.32-29,903.66-11,733.32

Finding the Fourth Proportional to 21,669.32, 29,903.66 and 11,733.32

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Solution

The fourth proportional to 21,669.32, 29,903.66 and 11,733.32 is: 16,191.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,669.32 : 29,903.66 = 11,733.32 : x
  2. Step 2: Convert to fraction form
    21,669.32/29,903.66 = 11,733.32/x
  3. Step 3: Cross multiply
    21,669.32x = 29,903.66 × 11,733.32
  4. Step 4: Simplify right side
    21,669.32x = 350,869,153.28
  5. Step 5: Solve for x
    x = 350,869,153.28/21,669.32
  6. Step 6: Final answer
    x = 16,191.98

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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.