Home / 38,520.88-53,163.13-21,754.96

Finding the Fourth Proportional to 38,520.88, 53,163.13 and 21,754.96

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Solution

The fourth proportional to 38,520.88, 53,163.13 and 21,754.96 is: 30,024.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.88 : 53,163.13 = 21,754.96 : x
  2. Step 2: Convert to fraction form
    38,520.88/53,163.13 = 21,754.96/x
  3. Step 3: Cross multiply
    38,520.88x = 53,163.13 × 21,754.96
  4. Step 4: Simplify right side
    38,520.88x = 1,156,561,500.81
  5. Step 5: Solve for x
    x = 1,156,561,500.81/38,520.88
  6. Step 6: Final answer
    x = 30,024.28

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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.