Home / 39,561.44-54,589.95-31,515.58

Finding the Fourth Proportional to 39,561.44, 54,589.95 and 31,515.58

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Solution

The fourth proportional to 39,561.44, 54,589.95 and 31,515.58 is: 43,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,561.44 : 54,589.95 = 31,515.58 : x
  2. Step 2: Convert to fraction form
    39,561.44/54,589.95 = 31,515.58/x
  3. Step 3: Cross multiply
    39,561.44x = 54,589.95 × 31,515.58
  4. Step 4: Simplify right side
    39,561.44x = 1,720,434,004.66
  5. Step 5: Solve for x
    x = 1,720,434,004.66/39,561.44
  6. Step 6: Final answer
    x = 43,487.65

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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.