Home / 47,989.07-71,987.92-12,927.95

Finding the Fourth Proportional to 47,989.07, 71,987.92 and 12,927.95

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Solution

The fourth proportional to 47,989.07, 71,987.92 and 12,927.95 is: 19,393.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,989.07 : 71,987.92 = 12,927.95 : x
  2. Step 2: Convert to fraction form
    47,989.07/71,987.92 = 12,927.95/x
  3. Step 3: Cross multiply
    47,989.07x = 71,987.92 × 12,927.95
  4. Step 4: Simplify right side
    47,989.07x = 930,656,230.36
  5. Step 5: Solve for x
    x = 930,656,230.36/47,989.07
  6. Step 6: Final answer
    x = 19,393.09

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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.