Home / 19,782.20-29,677.80-5,930.84

Finding the Fourth Proportional to 19,782.20, 29,677.80 and 5,930.84

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Solution

The fourth proportional to 19,782.20, 29,677.80 and 5,930.84 is: 8,897.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.20 : 29,677.80 = 5,930.84 : x
  2. Step 2: Convert to fraction form
    19,782.20/29,677.80 = 5,930.84/x
  3. Step 3: Cross multiply
    19,782.20x = 29,677.80 × 5,930.84
  4. Step 4: Simplify right side
    19,782.20x = 176,014,283.35
  5. Step 5: Solve for x
    x = 176,014,283.35/19,782.20
  6. Step 6: Final answer
    x = 8,897.61

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1.5x scale

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.