Home / 19,482.90-29,181.15-7,790.10

Finding the Fourth Proportional to 19,482.90, 29,181.15 and 7,790.10

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Solution

The fourth proportional to 19,482.90, 29,181.15 and 7,790.10 is: 11,667.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.90 : 29,181.15 = 7,790.10 : x
  2. Step 2: Convert to fraction form
    19,482.90/29,181.15 = 7,790.10/x
  3. Step 3: Cross multiply
    19,482.90x = 29,181.15 × 7,790.10
  4. Step 4: Simplify right side
    19,482.90x = 227,324,076.62
  5. Step 5: Solve for x
    x = 227,324,076.62/19,482.90
  6. Step 6: Final answer
    x = 11,667.88

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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.