Home / 31,977.36-47,964.24-9,790.74

Finding the Fourth Proportional to 31,977.36, 47,964.24 and 9,790.74

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Solution

The fourth proportional to 31,977.36, 47,964.24 and 9,790.74 is: 14,685.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.36 : 47,964.24 = 9,790.74 : x
  2. Step 2: Convert to fraction form
    31,977.36/47,964.24 = 9,790.74/x
  3. Step 3: Cross multiply
    31,977.36x = 47,964.24 × 9,790.74
  4. Step 4: Simplify right side
    31,977.36x = 469,605,403.14
  5. Step 5: Solve for x
    x = 469,605,403.14/31,977.36
  6. Step 6: Final answer
    x = 14,685.56

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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.