Home / 38,115.63-57,139.38-19,385.19

Finding the Fourth Proportional to 38,115.63, 57,139.38 and 19,385.19

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Solution

The fourth proportional to 38,115.63, 57,139.38 and 19,385.19 is: 29,060.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.63 : 57,139.38 = 19,385.19 : x
  2. Step 2: Convert to fraction form
    38,115.63/57,139.38 = 19,385.19/x
  3. Step 3: Cross multiply
    38,115.63x = 57,139.38 × 19,385.19
  4. Step 4: Simplify right side
    38,115.63x = 1,107,657,737.78
  5. Step 5: Solve for x
    x = 1,107,657,737.78/38,115.63
  6. Step 6: Final answer
    x = 29,060.46

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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.