Home / 38,115.10-57,225.01-19,407.70

Finding the Fourth Proportional to 38,115.10, 57,225.01 and 19,407.70

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Solution

The fourth proportional to 38,115.10, 57,225.01 and 19,407.70 is: 29,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.10 : 57,225.01 = 19,407.70 : x
  2. Step 2: Convert to fraction form
    38,115.10/57,225.01 = 19,407.70/x
  3. Step 3: Cross multiply
    38,115.10x = 57,225.01 × 19,407.70
  4. Step 4: Simplify right side
    38,115.10x = 1,110,605,826.58
  5. Step 5: Solve for x
    x = 1,110,605,826.58/38,115.10
  6. Step 6: Final answer
    x = 29,138.21

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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.