Home / 19,451.10-29,181.27-8,357.90

Finding the Fourth Proportional to 19,451.10, 29,181.27 and 8,357.90

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Solution

The fourth proportional to 19,451.10, 29,181.27 and 8,357.90 is: 12,538.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,451.10 : 29,181.27 = 8,357.90 : x
  2. Step 2: Convert to fraction form
    19,451.10/29,181.27 = 8,357.90/x
  3. Step 3: Cross multiply
    19,451.10x = 29,181.27 × 8,357.90
  4. Step 4: Simplify right side
    19,451.10x = 243,893,990.63
  5. Step 5: Solve for x
    x = 243,893,990.63/19,451.10
  6. Step 6: Final answer
    x = 12,538.83

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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.