Home / 38,786.40-58,149.36-18,007.20

Finding the Fourth Proportional to 38,786.40, 58,149.36 and 18,007.20

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Solution

The fourth proportional to 38,786.40, 58,149.36 and 18,007.20 is: 26,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,786.40 : 58,149.36 = 18,007.20 : x
  2. Step 2: Convert to fraction form
    38,786.40/58,149.36 = 18,007.20/x
  3. Step 3: Cross multiply
    38,786.40x = 58,149.36 × 18,007.20
  4. Step 4: Simplify right side
    38,786.40x = 1,047,107,155.39
  5. Step 5: Solve for x
    x = 1,047,107,155.39/38,786.40
  6. Step 6: Final answer
    x = 26,996.76

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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.