Home / 39,670.64-59,442.72-20,949.92

Finding the Fourth Proportional to 39,670.64, 59,442.72 and 20,949.92

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Solution

The fourth proportional to 39,670.64, 59,442.72 and 20,949.92 is: 31,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,670.64 : 59,442.72 = 20,949.92 : x
  2. Step 2: Convert to fraction form
    39,670.64/59,442.72 = 20,949.92/x
  3. Step 3: Cross multiply
    39,670.64x = 59,442.72 × 20,949.92
  4. Step 4: Simplify right side
    39,670.64x = 1,245,320,228.58
  5. Step 5: Solve for x
    x = 1,245,320,228.58/39,670.64
  6. Step 6: Final answer
    x = 31,391.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.