Home / 31,385.44-43,301.36-17,771.63

Finding the Fourth Proportional to 31,385.44, 43,301.36 and 17,771.63

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Solution

The fourth proportional to 31,385.44, 43,301.36 and 17,771.63 is: 24,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.44 : 43,301.36 = 17,771.63 : x
  2. Step 2: Convert to fraction form
    31,385.44/43,301.36 = 17,771.63/x
  3. Step 3: Cross multiply
    31,385.44x = 43,301.36 × 17,771.63
  4. Step 4: Simplify right side
    31,385.44x = 769,535,531.91
  5. Step 5: Solve for x
    x = 769,535,531.91/31,385.44
  6. Step 6: Final answer
    x = 24,518.87

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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.