Home / 35,420.20-53,136.70-17,845.80

Finding the Fourth Proportional to 35,420.20, 53,136.70 and 17,845.80

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Solution

The fourth proportional to 35,420.20, 53,136.70 and 17,845.80 is: 26,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,420.20 : 53,136.70 = 17,845.80 : x
  2. Step 2: Convert to fraction form
    35,420.20/53,136.70 = 17,845.80/x
  3. Step 3: Cross multiply
    35,420.20x = 53,136.70 × 17,845.80
  4. Step 4: Simplify right side
    35,420.20x = 948,266,920.86
  5. Step 5: Solve for x
    x = 948,266,920.86/35,420.20
  6. Step 6: Final answer
    x = 26,771.92

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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.