Home / 38,771.86-58,157.81-12,476.60

Finding the Fourth Proportional to 38,771.86, 58,157.81 and 12,476.60

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Solution

The fourth proportional to 38,771.86, 58,157.81 and 12,476.60 is: 18,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,771.86 : 58,157.81 = 12,476.60 : x
  2. Step 2: Convert to fraction form
    38,771.86/58,157.81 = 12,476.60/x
  3. Step 3: Cross multiply
    38,771.86x = 58,157.81 × 12,476.60
  4. Step 4: Simplify right side
    38,771.86x = 725,611,472.65
  5. Step 5: Solve for x
    x = 725,611,472.65/38,771.86
  6. Step 6: Final answer
    x = 18,714.90

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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.