Home / 39,830.24-59,755.10-12,128.24

Finding the Fourth Proportional to 39,830.24, 59,755.10 and 12,128.24

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Solution

The fourth proportional to 39,830.24, 59,755.10 and 12,128.24 is: 18,195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.24 : 59,755.10 = 12,128.24 : x
  2. Step 2: Convert to fraction form
    39,830.24/59,755.10 = 12,128.24/x
  3. Step 3: Cross multiply
    39,830.24x = 59,755.10 × 12,128.24
  4. Step 4: Simplify right side
    39,830.24x = 724,724,194.02
  5. Step 5: Solve for x
    x = 724,724,194.02/39,830.24
  6. Step 6: Final answer
    x = 18,195.33

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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.