Home / 31,582.51-47,348.79-11,858.88

Finding the Fourth Proportional to 31,582.51, 47,348.79 and 11,858.88

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Solution

The fourth proportional to 31,582.51, 47,348.79 and 11,858.88 is: 17,778.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,582.51 : 47,348.79 = 11,858.88 : x
  2. Step 2: Convert to fraction form
    31,582.51/47,348.79 = 11,858.88/x
  3. Step 3: Cross multiply
    31,582.51x = 47,348.79 × 11,858.88
  4. Step 4: Simplify right side
    31,582.51x = 561,503,618.76
  5. Step 5: Solve for x
    x = 561,503,618.76/31,582.51
  6. Step 6: Final answer
    x = 17,778.94

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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.