Home / 19,224.48-28,845.60-7,540.80

Finding the Fourth Proportional to 19,224.48, 28,845.60 and 7,540.80

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Solution

The fourth proportional to 19,224.48, 28,845.60 and 7,540.80 is: 11,314.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,224.48 : 28,845.60 = 7,540.80 : x
  2. Step 2: Convert to fraction form
    19,224.48/28,845.60 = 7,540.80/x
  3. Step 3: Cross multiply
    19,224.48x = 28,845.60 × 7,540.80
  4. Step 4: Simplify right side
    19,224.48x = 217,518,900.48
  5. Step 5: Solve for x
    x = 217,518,900.48/19,224.48
  6. Step 6: Final answer
    x = 11,314.68

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1.5x scale

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.