Home / 40,939.40-61,400.70-11,349.80

Finding the Fourth Proportional to 40,939.40, 61,400.70 and 11,349.80

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Solution

The fourth proportional to 40,939.40, 61,400.70 and 11,349.80 is: 17,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,939.40 : 61,400.70 = 11,349.80 : x
  2. Step 2: Convert to fraction form
    40,939.40/61,400.70 = 11,349.80/x
  3. Step 3: Cross multiply
    40,939.40x = 61,400.70 × 11,349.80
  4. Step 4: Simplify right side
    40,939.40x = 696,885,664.86
  5. Step 5: Solve for x
    x = 696,885,664.86/40,939.40
  6. Step 6: Final answer
    x = 17,022.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.