Home / 39,599.40-54,647.16-21,695.52

Finding the Fourth Proportional to 39,599.40, 54,647.16 and 21,695.52

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Solution

The fourth proportional to 39,599.40, 54,647.16 and 21,695.52 is: 29,939.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,599.40 : 54,647.16 = 21,695.52 : x
  2. Step 2: Convert to fraction form
    39,599.40/54,647.16 = 21,695.52/x
  3. Step 3: Cross multiply
    39,599.40x = 54,647.16 × 21,695.52
  4. Step 4: Simplify right side
    39,599.40x = 1,185,598,552.72
  5. Step 5: Solve for x
    x = 1,185,598,552.72/39,599.40
  6. Step 6: Final answer
    x = 29,939.81

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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.