Home / 19,422.45-29,131.74-8,327.07

Finding the Fourth Proportional to 19,422.45, 29,131.74 and 8,327.07

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Solution

The fourth proportional to 19,422.45, 29,131.74 and 8,327.07 is: 12,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.45 : 29,131.74 = 8,327.07 : x
  2. Step 2: Convert to fraction form
    19,422.45/29,131.74 = 8,327.07/x
  3. Step 3: Cross multiply
    19,422.45x = 29,131.74 × 8,327.07
  4. Step 4: Simplify right side
    19,422.45x = 242,582,038.20
  5. Step 5: Solve for x
    x = 242,582,038.20/19,422.45
  6. Step 6: Final answer
    x = 12,489.78

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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.