Home / 39,203.31-54,100.61-21,298.33

Finding the Fourth Proportional to 39,203.31, 54,100.61 and 21,298.33

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Solution

The fourth proportional to 39,203.31, 54,100.61 and 21,298.33 is: 29,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,203.31 : 54,100.61 = 21,298.33 : x
  2. Step 2: Convert to fraction form
    39,203.31/54,100.61 = 21,298.33/x
  3. Step 3: Cross multiply
    39,203.31x = 54,100.61 × 21,298.33
  4. Step 4: Simplify right side
    39,203.31x = 1,152,252,562.98
  5. Step 5: Solve for x
    x = 1,152,252,562.98/39,203.31
  6. Step 6: Final answer
    x = 29,391.72

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1.5x scale

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.