Home / 31,192.85-46,775.10-20,170.37

Finding the Fourth Proportional to 31,192.85, 46,775.10 and 20,170.37

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Solution

The fourth proportional to 31,192.85, 46,775.10 and 20,170.37 is: 30,246.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,192.85 : 46,775.10 = 20,170.37 : x
  2. Step 2: Convert to fraction form
    31,192.85/46,775.10 = 20,170.37/x
  3. Step 3: Cross multiply
    31,192.85x = 46,775.10 × 20,170.37
  4. Step 4: Simplify right side
    31,192.85x = 943,471,266.36
  5. Step 5: Solve for x
    x = 943,471,266.36/31,192.85
  6. Step 6: Final answer
    x = 30,246.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.