Home / 38,805.64-58,162.89-38,390.11

Finding the Fourth Proportional to 38,805.64, 58,162.89 and 38,390.11

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Solution

The fourth proportional to 38,805.64, 58,162.89 and 38,390.11 is: 57,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,805.64 : 58,162.89 = 38,390.11 : x
  2. Step 2: Convert to fraction form
    38,805.64/58,162.89 = 38,390.11/x
  3. Step 3: Cross multiply
    38,805.64x = 58,162.89 × 38,390.11
  4. Step 4: Simplify right side
    38,805.64x = 2,232,879,743.57
  5. Step 5: Solve for x
    x = 2,232,879,743.57/38,805.64
  6. Step 6: Final answer
    x = 57,540.09

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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.