Home / 21,865.75-32,755.72-11,342.63

Finding the Fourth Proportional to 21,865.75, 32,755.72 and 11,342.63

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Solution

The fourth proportional to 21,865.75, 32,755.72 and 11,342.63 is: 16,991.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,865.75 : 32,755.72 = 11,342.63 : x
  2. Step 2: Convert to fraction form
    21,865.75/32,755.72 = 11,342.63/x
  3. Step 3: Cross multiply
    21,865.75x = 32,755.72 × 11,342.63
  4. Step 4: Simplify right side
    21,865.75x = 371,536,055.24
  5. Step 5: Solve for x
    x = 371,536,055.24/21,865.75
  6. Step 6: Final answer
    x = 16,991.69

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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.