Home / 38,221.34-57,336.57-18,485.72

Finding the Fourth Proportional to 38,221.34, 57,336.57 and 18,485.72

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Solution

The fourth proportional to 38,221.34, 57,336.57 and 18,485.72 is: 27,730.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,221.34 : 57,336.57 = 18,485.72 : x
  2. Step 2: Convert to fraction form
    38,221.34/57,336.57 = 18,485.72/x
  3. Step 3: Cross multiply
    38,221.34x = 57,336.57 × 18,485.72
  4. Step 4: Simplify right side
    38,221.34x = 1,059,907,492.10
  5. Step 5: Solve for x
    x = 1,059,907,492.10/38,221.34
  6. Step 6: Final answer
    x = 27,730.78

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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.