Home / 31,918.84-47,859.42-13,177.86

Finding the Fourth Proportional to 31,918.84, 47,859.42 and 13,177.86

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Solution

The fourth proportional to 31,918.84, 47,859.42 and 13,177.86 is: 19,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,918.84 : 47,859.42 = 13,177.86 : x
  2. Step 2: Convert to fraction form
    31,918.84/47,859.42 = 13,177.86/x
  3. Step 3: Cross multiply
    31,918.84x = 47,859.42 × 13,177.86
  4. Step 4: Simplify right side
    31,918.84x = 630,684,736.44
  5. Step 5: Solve for x
    x = 630,684,736.44/31,918.84
  6. Step 6: Final answer
    x = 19,759.01

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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.