Home / 39,139.08-54,010.44-21,233.46

Finding the Fourth Proportional to 39,139.08, 54,010.44 and 21,233.46

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Solution

The fourth proportional to 39,139.08, 54,010.44 and 21,233.46 is: 29,301.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.08 : 54,010.44 = 21,233.46 : x
  2. Step 2: Convert to fraction form
    39,139.08/54,010.44 = 21,233.46/x
  3. Step 3: Cross multiply
    39,139.08x = 54,010.44 × 21,233.46
  4. Step 4: Simplify right side
    39,139.08x = 1,146,828,517.32
  5. Step 5: Solve for x
    x = 1,146,828,517.32/39,139.08
  6. Step 6: Final answer
    x = 29,301.37

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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.