Home / 38,211.60-57,322.80-11,913.60

Finding the Fourth Proportional to 38,211.60, 57,322.80 and 11,913.60

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Solution

The fourth proportional to 38,211.60, 57,322.80 and 11,913.60 is: 17,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,211.60 : 57,322.80 = 11,913.60 : x
  2. Step 2: Convert to fraction form
    38,211.60/57,322.80 = 11,913.60/x
  3. Step 3: Cross multiply
    38,211.60x = 57,322.80 × 11,913.60
  4. Step 4: Simplify right side
    38,211.60x = 682,920,910.08
  5. Step 5: Solve for x
    x = 682,920,910.08/38,211.60
  6. Step 6: Final answer
    x = 17,872.08

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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.