Home / 39,048.45-53,886.20-21,143.31

Finding the Fourth Proportional to 39,048.45, 53,886.20 and 21,143.31

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Solution

The fourth proportional to 39,048.45, 53,886.20 and 21,143.31 is: 29,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,048.45 : 53,886.20 = 21,143.31 : x
  2. Step 2: Convert to fraction form
    39,048.45/53,886.20 = 21,143.31/x
  3. Step 3: Cross multiply
    39,048.45x = 53,886.20 × 21,143.31
  4. Step 4: Simplify right side
    39,048.45x = 1,139,332,525.61
  5. Step 5: Solve for x
    x = 1,139,332,525.61/39,048.45
  6. Step 6: Final answer
    x = 29,177.41

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