Home / 19,720.60-29,572.44-7,236.52

Finding the Fourth Proportional to 19,720.60, 29,572.44 and 7,236.52

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Solution

The fourth proportional to 19,720.60, 29,572.44 and 7,236.52 is: 10,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.60 : 29,572.44 = 7,236.52 : x
  2. Step 2: Convert to fraction form
    19,720.60/29,572.44 = 7,236.52/x
  3. Step 3: Cross multiply
    19,720.60x = 29,572.44 × 7,236.52
  4. Step 4: Simplify right side
    19,720.60x = 214,001,553.51
  5. Step 5: Solve for x
    x = 214,001,553.51/19,720.60
  6. Step 6: Final answer
    x = 10,851.68

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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.