Home / 31,431.86-43,374.15-17,284.71

Finding the Fourth Proportional to 31,431.86, 43,374.15 and 17,284.71

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Solution

The fourth proportional to 31,431.86, 43,374.15 and 17,284.71 is: 23,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.86 : 43,374.15 = 17,284.71 : x
  2. Step 2: Convert to fraction form
    31,431.86/43,374.15 = 17,284.71/x
  3. Step 3: Cross multiply
    31,431.86x = 43,374.15 × 17,284.71
  4. Step 4: Simplify right side
    31,431.86x = 749,709,604.25
  5. Step 5: Solve for x
    x = 749,709,604.25/31,431.86
  6. Step 6: Final answer
    x = 23,851.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.