Home / 38,538.10-57,714.81-19,768.78

Finding the Fourth Proportional to 38,538.10, 57,714.81 and 19,768.78

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Solution

The fourth proportional to 38,538.10, 57,714.81 and 19,768.78 is: 29,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,538.10 : 57,714.81 = 19,768.78 : x
  2. Step 2: Convert to fraction form
    38,538.10/57,714.81 = 19,768.78/x
  3. Step 3: Cross multiply
    38,538.10x = 57,714.81 × 19,768.78
  4. Step 4: Simplify right side
    38,538.10x = 1,140,951,381.63
  5. Step 5: Solve for x
    x = 1,140,951,381.63/38,538.10
  6. Step 6: Final answer
    x = 29,605.80

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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.