Home / 31,772.20-43,756.86-31,083.43

Finding the Fourth Proportional to 31,772.20, 43,756.86 and 31,083.43

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Solution

The fourth proportional to 31,772.20, 43,756.86 and 31,083.43 is: 42,808.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,772.20 : 43,756.86 = 31,083.43 : x
  2. Step 2: Convert to fraction form
    31,772.20/43,756.86 = 31,083.43/x
  3. Step 3: Cross multiply
    31,772.20x = 43,756.86 × 31,083.43
  4. Step 4: Simplify right side
    31,772.20x = 1,360,113,294.83
  5. Step 5: Solve for x
    x = 1,360,113,294.83/31,772.20
  6. Step 6: Final answer
    x = 42,808.28

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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.