Home / 19,419.24-29,135.34-8,321.16

Finding the Fourth Proportional to 19,419.24, 29,135.34 and 8,321.16

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Solution

The fourth proportional to 19,419.24, 29,135.34 and 8,321.16 is: 12,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.24 : 29,135.34 = 8,321.16 : x
  2. Step 2: Convert to fraction form
    19,419.24/29,135.34 = 8,321.16/x
  3. Step 3: Cross multiply
    19,419.24x = 29,135.34 × 8,321.16
  4. Step 4: Simplify right side
    19,419.24x = 242,439,825.79
  5. Step 5: Solve for x
    x = 242,439,825.79/19,419.24
  6. Step 6: Final answer
    x = 12,484.52

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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.