Home / 31,187.10-43,035.80-17,755.68

Finding the Fourth Proportional to 31,187.10, 43,035.80 and 17,755.68

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Solution

The fourth proportional to 31,187.10, 43,035.80 and 17,755.68 is: 24,501.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.10 : 43,035.80 = 17,755.68 : x
  2. Step 2: Convert to fraction form
    31,187.10/43,035.80 = 17,755.68/x
  3. Step 3: Cross multiply
    31,187.10x = 43,035.80 × 17,755.68
  4. Step 4: Simplify right side
    31,187.10x = 764,129,893.34
  5. Step 5: Solve for x
    x = 764,129,893.34/31,187.10
  6. Step 6: Final answer
    x = 24,501.47

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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.