Home / 31,331.97-46,941.31-20,776.86

Finding the Fourth Proportional to 31,331.97, 46,941.31 and 20,776.86

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Solution

The fourth proportional to 31,331.97, 46,941.31 and 20,776.86 is: 31,127.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,331.97 : 46,941.31 = 20,776.86 : x
  2. Step 2: Convert to fraction form
    31,331.97/46,941.31 = 20,776.86/x
  3. Step 3: Cross multiply
    31,331.97x = 46,941.31 × 20,776.86
  4. Step 4: Simplify right side
    31,331.97x = 975,293,026.09
  5. Step 5: Solve for x
    x = 975,293,026.09/31,331.97
  6. Step 6: Final answer
    x = 31,127.73

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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.