Home / 31,910.46-44,035.80-19,980.38

Finding the Fourth Proportional to 31,910.46, 44,035.80 and 19,980.38

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Solution

The fourth proportional to 31,910.46, 44,035.80 and 19,980.38 is: 27,572.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,910.46 : 44,035.80 = 19,980.38 : x
  2. Step 2: Convert to fraction form
    31,910.46/44,035.80 = 19,980.38/x
  3. Step 3: Cross multiply
    31,910.46x = 44,035.80 × 19,980.38
  4. Step 4: Simplify right side
    31,910.46x = 879,851,797.43
  5. Step 5: Solve for x
    x = 879,851,797.43/31,910.46
  6. Step 6: Final answer
    x = 27,572.52

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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.