Home / 21,647.76-29,890.80-16,945.44

Finding the Fourth Proportional to 21,647.76, 29,890.80 and 16,945.44

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Solution

The fourth proportional to 21,647.76, 29,890.80 and 16,945.44 is: 23,397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647.76 : 29,890.80 = 16,945.44 : x
  2. Step 2: Convert to fraction form
    21,647.76/29,890.80 = 16,945.44/x
  3. Step 3: Cross multiply
    21,647.76x = 29,890.80 × 16,945.44
  4. Step 4: Simplify right side
    21,647.76x = 506,512,757.95
  5. Step 5: Solve for x
    x = 506,512,757.95/21,647.76
  6. Step 6: Final answer
    x = 23,397.93

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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.