Home / 19,631.08-29,459.09-7,149.88

Finding the Fourth Proportional to 19,631.08, 29,459.09 and 7,149.88

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Solution

The fourth proportional to 19,631.08, 29,459.09 and 7,149.88 is: 10,729.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,631.08 : 29,459.09 = 7,149.88 : x
  2. Step 2: Convert to fraction form
    19,631.08/29,459.09 = 7,149.88/x
  3. Step 3: Cross multiply
    19,631.08x = 29,459.09 × 7,149.88
  4. Step 4: Simplify right side
    19,631.08x = 210,628,958.41
  5. Step 5: Solve for x
    x = 210,628,958.41/19,631.08
  6. Step 6: Final answer
    x = 10,729.36

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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.