Home / 39,053.34-53,893.29-21,147.90

Finding the Fourth Proportional to 39,053.34, 53,893.29 and 21,147.90

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Solution

The fourth proportional to 39,053.34, 53,893.29 and 21,147.90 is: 29,183.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,053.34 : 53,893.29 = 21,147.90 : x
  2. Step 2: Convert to fraction form
    39,053.34/53,893.29 = 21,147.90/x
  3. Step 3: Cross multiply
    39,053.34x = 53,893.29 × 21,147.90
  4. Step 4: Simplify right side
    39,053.34x = 1,139,729,907.59
  5. Step 5: Solve for x
    x = 1,139,729,907.59/39,053.34
  6. Step 6: Final answer
    x = 29,183.93

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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.