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Finding the Fourth Proportional to 35,653.96, 53,480.22 and 12,279.88

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Solution

The fourth proportional to 35,653.96, 53,480.22 and 12,279.88 is: 18,419.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,653.96 : 53,480.22 = 12,279.88 : x
  2. Step 2: Convert to fraction form
    35,653.96/53,480.22 = 12,279.88/x
  3. Step 3: Cross multiply
    35,653.96x = 53,480.22 × 12,279.88
  4. Step 4: Simplify right side
    35,653.96x = 656,730,683.97
  5. Step 5: Solve for x
    x = 656,730,683.97/35,653.96
  6. Step 6: Final answer
    x = 18,419.57

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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.