Home / 19,964.80-29,947.20-6,113.80

Finding the Fourth Proportional to 19,964.80, 29,947.20 and 6,113.80

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Solution

The fourth proportional to 19,964.80, 29,947.20 and 6,113.80 is: 9,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.80 : 29,947.20 = 6,113.80 : x
  2. Step 2: Convert to fraction form
    19,964.80/29,947.20 = 6,113.80/x
  3. Step 3: Cross multiply
    19,964.80x = 29,947.20 × 6,113.80
  4. Step 4: Simplify right side
    19,964.80x = 183,091,191.36
  5. Step 5: Solve for x
    x = 183,091,191.36/19,964.80
  6. Step 6: Final answer
    x = 9,170.70

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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.