Home / 31,536.50-43,520.38-17,389.64

Finding the Fourth Proportional to 31,536.50, 43,520.38 and 17,389.64

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Solution

The fourth proportional to 31,536.50, 43,520.38 and 17,389.64 is: 23,997.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,536.50 : 43,520.38 = 17,389.64 : x
  2. Step 2: Convert to fraction form
    31,536.50/43,520.38 = 17,389.64/x
  3. Step 3: Cross multiply
    31,536.50x = 43,520.38 × 17,389.64
  4. Step 4: Simplify right side
    31,536.50x = 756,803,740.86
  5. Step 5: Solve for x
    x = 756,803,740.86/31,536.50
  6. Step 6: Final answer
    x = 23,997.71

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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.