Home / 31,837.64-47,759.48-13,118.94

Finding the Fourth Proportional to 31,837.64, 47,759.48 and 13,118.94

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Solution

The fourth proportional to 31,837.64, 47,759.48 and 13,118.94 is: 19,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,837.64 : 47,759.48 = 13,118.94 : x
  2. Step 2: Convert to fraction form
    31,837.64/47,759.48 = 13,118.94/x
  3. Step 3: Cross multiply
    31,837.64x = 47,759.48 × 13,118.94
  4. Step 4: Simplify right side
    31,837.64x = 626,553,752.55
  5. Step 5: Solve for x
    x = 626,553,752.55/31,837.64
  6. Step 6: Final answer
    x = 19,679.65

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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.