Home / 31,613.88-47,420.64-12,893.82

Finding the Fourth Proportional to 31,613.88, 47,420.64 and 12,893.82

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Solution

The fourth proportional to 31,613.88, 47,420.64 and 12,893.82 is: 19,340.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,613.88 : 47,420.64 = 12,893.82 : x
  2. Step 2: Convert to fraction form
    31,613.88/47,420.64 = 12,893.82/x
  3. Step 3: Cross multiply
    31,613.88x = 47,420.64 × 12,893.82
  4. Step 4: Simplify right side
    31,613.88x = 611,433,196.44
  5. Step 5: Solve for x
    x = 611,433,196.44/31,613.88
  6. Step 6: Final answer
    x = 19,340.66

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1.5x scale

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.