Home / 34,890-48,148.20-19,986.96

Finding the Fourth Proportional to 34,890, 48,148.20 and 19,986.96

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Solution

The fourth proportional to 34,890, 48,148.20 and 19,986.96 is: 27,582.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,890 : 48,148.20 = 19,986.96 : x
  2. Step 2: Convert to fraction form
    34,890/48,148.20 = 19,986.96/x
  3. Step 3: Cross multiply
    34,890x = 48,148.20 × 19,986.96
  4. Step 4: Simplify right side
    34,890x = 962,336,147.47
  5. Step 5: Solve for x
    x = 962,336,147.47/34,890
  6. Step 6: Final answer
    x = 27,582.00

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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.