Home / 19,690.20-29,501.88-11,882.64

Finding the Fourth Proportional to 19,690.20, 29,501.88 and 11,882.64

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Solution

The fourth proportional to 19,690.20, 29,501.88 and 11,882.64 is: 17,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.20 : 29,501.88 = 11,882.64 : x
  2. Step 2: Convert to fraction form
    19,690.20/29,501.88 = 11,882.64/x
  3. Step 3: Cross multiply
    19,690.20x = 29,501.88 × 11,882.64
  4. Step 4: Simplify right side
    19,690.20x = 350,560,219.36
  5. Step 5: Solve for x
    x = 350,560,219.36/19,690.20
  6. Step 6: Final answer
    x = 17,803.79

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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.