Home / 20,416.56-30,625.98-6,378.53

Finding the Fourth Proportional to 20,416.56, 30,625.98 and 6,378.53

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Solution

The fourth proportional to 20,416.56, 30,625.98 and 6,378.53 is: 9,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.56 : 30,625.98 = 6,378.53 : x
  2. Step 2: Convert to fraction form
    20,416.56/30,625.98 = 6,378.53/x
  3. Step 3: Cross multiply
    20,416.56x = 30,625.98 × 6,378.53
  4. Step 4: Simplify right side
    20,416.56x = 195,348,579.08
  5. Step 5: Solve for x
    x = 195,348,579.08/20,416.56
  6. Step 6: Final answer
    x = 9,568.14

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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.