Home / 38,814.72-58,220.04-12,519.47

Finding the Fourth Proportional to 38,814.72, 58,220.04 and 12,519.47

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Solution

The fourth proportional to 38,814.72, 58,220.04 and 12,519.47 is: 18,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,814.72 : 58,220.04 = 12,519.47 : x
  2. Step 2: Convert to fraction form
    38,814.72/58,220.04 = 12,519.47/x
  3. Step 3: Cross multiply
    38,814.72x = 58,220.04 × 12,519.47
  4. Step 4: Simplify right side
    38,814.72x = 728,883,753.08
  5. Step 5: Solve for x
    x = 728,883,753.08/38,814.72
  6. Step 6: Final answer
    x = 18,778.54

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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.