Home / 31,477.64-47,249.28-13,959.77

Finding the Fourth Proportional to 31,477.64, 47,249.28 and 13,959.77

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Solution

The fourth proportional to 31,477.64, 47,249.28 and 13,959.77 is: 20,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477.64 : 47,249.28 = 13,959.77 : x
  2. Step 2: Convert to fraction form
    31,477.64/47,249.28 = 13,959.77/x
  3. Step 3: Cross multiply
    31,477.64x = 47,249.28 × 13,959.77
  4. Step 4: Simplify right side
    31,477.64x = 659,588,845.22
  5. Step 5: Solve for x
    x = 659,588,845.22/31,477.64
  6. Step 6: Final answer
    x = 20,954.21

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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.