Home / 38,512.08-57,770.55-12,218.40

Finding the Fourth Proportional to 38,512.08, 57,770.55 and 12,218.40

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Solution

The fourth proportional to 38,512.08, 57,770.55 and 12,218.40 is: 18,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,512.08 : 57,770.55 = 12,218.40 : x
  2. Step 2: Convert to fraction form
    38,512.08/57,770.55 = 12,218.40/x
  3. Step 3: Cross multiply
    38,512.08x = 57,770.55 × 12,218.40
  4. Step 4: Simplify right side
    38,512.08x = 705,863,688.12
  5. Step 5: Solve for x
    x = 705,863,688.12/38,512.08
  6. Step 6: Final answer
    x = 18,328.37

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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.