Home / 32,897.75-45,377.21-20,942.15

Finding the Fourth Proportional to 32,897.75, 45,377.21 and 20,942.15

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Solution

The fourth proportional to 32,897.75, 45,377.21 and 20,942.15 is: 28,886.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,897.75 : 45,377.21 = 20,942.15 : x
  2. Step 2: Convert to fraction form
    32,897.75/45,377.21 = 20,942.15/x
  3. Step 3: Cross multiply
    32,897.75x = 45,377.21 × 20,942.15
  4. Step 4: Simplify right side
    32,897.75x = 950,296,163.87
  5. Step 5: Solve for x
    x = 950,296,163.87/32,897.75
  6. Step 6: Final answer
    x = 28,886.36

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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.