Home / 38,939.76-58,384.08-19,231.20

Finding the Fourth Proportional to 38,939.76, 58,384.08 and 19,231.20

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Solution

The fourth proportional to 38,939.76, 58,384.08 and 19,231.20 is: 28,834.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.76 : 58,384.08 = 19,231.20 : x
  2. Step 2: Convert to fraction form
    38,939.76/58,384.08 = 19,231.20/x
  3. Step 3: Cross multiply
    38,939.76x = 58,384.08 × 19,231.20
  4. Step 4: Simplify right side
    38,939.76x = 1,122,795,919.30
  5. Step 5: Solve for x
    x = 1,122,795,919.30/38,939.76
  6. Step 6: Final answer
    x = 28,834.18

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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.