Home / 39,199.07-58,805.90-12,905.66

Finding the Fourth Proportional to 39,199.07, 58,805.90 and 12,905.66

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Solution

The fourth proportional to 39,199.07, 58,805.90 and 12,905.66 is: 19,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,199.07 : 58,805.90 = 12,905.66 : x
  2. Step 2: Convert to fraction form
    39,199.07/58,805.90 = 12,905.66/x
  3. Step 3: Cross multiply
    39,199.07x = 58,805.90 × 12,905.66
  4. Step 4: Simplify right side
    39,199.07x = 758,929,082.28
  5. Step 5: Solve for x
    x = 758,929,082.28/39,199.07
  6. Step 6: Final answer
    x = 19,360.89

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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.