Home / 31,748.69-43,814.57-18,999.44

Finding the Fourth Proportional to 31,748.69, 43,814.57 and 18,999.44

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Solution

The fourth proportional to 31,748.69, 43,814.57 and 18,999.44 is: 26,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,748.69 : 43,814.57 = 18,999.44 : x
  2. Step 2: Convert to fraction form
    31,748.69/43,814.57 = 18,999.44/x
  3. Step 3: Cross multiply
    31,748.69x = 43,814.57 × 18,999.44
  4. Step 4: Simplify right side
    31,748.69x = 832,451,979.77
  5. Step 5: Solve for x
    x = 832,451,979.77/31,748.69
  6. Step 6: Final answer
    x = 26,220.05

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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.