Home / 31,613.36-47,419.88-12,893.32

Finding the Fourth Proportional to 31,613.36, 47,419.88 and 12,893.32

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Solution

The fourth proportional to 31,613.36, 47,419.88 and 12,893.32 is: 19,339.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.36 : 47,419.88 = 12,893.32 : x
  2. Step 2: Convert to fraction form
    31,613.36/47,419.88 = 12,893.32/x
  3. Step 3: Cross multiply
    31,613.36x = 47,419.88 × 12,893.32
  4. Step 4: Simplify right side
    31,613.36x = 611,399,687.20
  5. Step 5: Solve for x
    x = 611,399,687.20/31,613.36
  6. Step 6: Final answer
    x = 19,339.91

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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.