Home / 31,539.76-43,490.96-31,074.41

Finding the Fourth Proportional to 31,539.76, 43,490.96 and 31,074.41

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Solution

The fourth proportional to 31,539.76, 43,490.96 and 31,074.41 is: 42,849.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.76 : 43,490.96 = 31,074.41 : x
  2. Step 2: Convert to fraction form
    31,539.76/43,490.96 = 31,074.41/x
  3. Step 3: Cross multiply
    31,539.76x = 43,490.96 × 31,074.41
  4. Step 4: Simplify right side
    31,539.76x = 1,351,455,766.96
  5. Step 5: Solve for x
    x = 1,351,455,766.96/31,539.76
  6. Step 6: Final answer
    x = 42,849.28

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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.