Home / 39,062.76-53,906.51-21,157.81

Finding the Fourth Proportional to 39,062.76, 53,906.51 and 21,157.81

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Solution

The fourth proportional to 39,062.76, 53,906.51 and 21,157.81 is: 29,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,062.76 : 53,906.51 = 21,157.81 : x
  2. Step 2: Convert to fraction form
    39,062.76/53,906.51 = 21,157.81/x
  3. Step 3: Cross multiply
    39,062.76x = 53,906.51 × 21,157.81
  4. Step 4: Simplify right side
    39,062.76x = 1,140,543,614.47
  5. Step 5: Solve for x
    x = 1,140,543,614.47/39,062.76
  6. Step 6: Final answer
    x = 29,197.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.