Home / 21,669.45-32,444.26-11,116.72

Finding the Fourth Proportional to 21,669.45, 32,444.26 and 11,116.72

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Solution

The fourth proportional to 21,669.45, 32,444.26 and 11,116.72 is: 16,644.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,669.45 : 32,444.26 = 11,116.72 : x
  2. Step 2: Convert to fraction form
    21,669.45/32,444.26 = 11,116.72/x
  3. Step 3: Cross multiply
    21,669.45x = 32,444.26 × 11,116.72
  4. Step 4: Simplify right side
    21,669.45x = 360,673,691.17
  5. Step 5: Solve for x
    x = 360,673,691.17/21,669.45
  6. Step 6: Final answer
    x = 16,644.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.