Home / 19,416.06-29,119.28-8,321.49

Finding the Fourth Proportional to 19,416.06, 29,119.28 and 8,321.49

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Solution

The fourth proportional to 19,416.06, 29,119.28 and 8,321.49 is: 12,480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,416.06 : 29,119.28 = 8,321.49 : x
  2. Step 2: Convert to fraction form
    19,416.06/29,119.28 = 8,321.49/x
  3. Step 3: Cross multiply
    19,416.06x = 29,119.28 × 8,321.49
  4. Step 4: Simplify right side
    19,416.06x = 242,315,755.72
  5. Step 5: Solve for x
    x = 242,315,755.72/19,416.06
  6. Step 6: Final answer
    x = 12,480.17

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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.