Home / 20,733.24-31,245.86-18,761.52

Finding the Fourth Proportional to 20,733.24, 31,245.86 and 18,761.52

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Solution

The fourth proportional to 20,733.24, 31,245.86 and 18,761.52 is: 28,274.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.24 : 31,245.86 = 18,761.52 : x
  2. Step 2: Convert to fraction form
    20,733.24/31,245.86 = 18,761.52/x
  3. Step 3: Cross multiply
    20,733.24x = 31,245.86 × 18,761.52
  4. Step 4: Simplify right side
    20,733.24x = 586,219,733.50
  5. Step 5: Solve for x
    x = 586,219,733.50/20,733.24
  6. Step 6: Final answer
    x = 28,274.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.