Home / 39,062.64-53,906.56-21,157.58

Finding the Fourth Proportional to 39,062.64, 53,906.56 and 21,157.58

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Solution

The fourth proportional to 39,062.64, 53,906.56 and 21,157.58 is: 29,197.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,062.64 : 53,906.56 = 21,157.58 : x
  2. Step 2: Convert to fraction form
    39,062.64/53,906.56 = 21,157.58/x
  3. Step 3: Cross multiply
    39,062.64x = 53,906.56 × 21,157.58
  4. Step 4: Simplify right side
    39,062.64x = 1,140,532,355.72
  5. Step 5: Solve for x
    x = 1,140,532,355.72/39,062.64
  6. Step 6: Final answer
    x = 29,197.52

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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.