Home / 38,813.91-58,220.85-12,518.64

Finding the Fourth Proportional to 38,813.91, 58,220.85 and 12,518.64

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Solution

The fourth proportional to 38,813.91, 58,220.85 and 12,518.64 is: 18,777.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,813.91 : 58,220.85 = 12,518.64 : x
  2. Step 2: Convert to fraction form
    38,813.91/58,220.85 = 12,518.64/x
  3. Step 3: Cross multiply
    38,813.91x = 58,220.85 × 12,518.64
  4. Step 4: Simplify right side
    38,813.91x = 728,845,861.64
  5. Step 5: Solve for x
    x = 728,845,861.64/38,813.91
  6. Step 6: Final answer
    x = 18,777.96

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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.