Home / 31,464.42-47,196.26-12,739.38

Finding the Fourth Proportional to 31,464.42, 47,196.26 and 12,739.38

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Solution

The fourth proportional to 31,464.42, 47,196.26 and 12,739.38 is: 19,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,464.42 : 47,196.26 = 12,739.38 : x
  2. Step 2: Convert to fraction form
    31,464.42/47,196.26 = 12,739.38/x
  3. Step 3: Cross multiply
    31,464.42x = 47,196.26 × 12,739.38
  4. Step 4: Simplify right side
    31,464.42x = 601,251,090.72
  5. Step 5: Solve for x
    x = 601,251,090.72/31,464.42
  6. Step 6: Final answer
    x = 19,108.92

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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.