Home / 23,197.89-31,998.84-20,500.47

Finding the Fourth Proportional to 23,197.89, 31,998.84 and 20,500.47

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Solution

The fourth proportional to 23,197.89, 31,998.84 and 20,500.47 is: 28,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,197.89 : 31,998.84 = 20,500.47 : x
  2. Step 2: Convert to fraction form
    23,197.89/31,998.84 = 20,500.47/x
  3. Step 3: Cross multiply
    23,197.89x = 31,998.84 × 20,500.47
  4. Step 4: Simplify right side
    23,197.89x = 655,991,259.45
  5. Step 5: Solve for x
    x = 655,991,259.45/23,197.89
  6. Step 6: Final answer
    x = 28,278.06

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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.