Home / 38,811.10-58,217.26-12,157.80

Finding the Fourth Proportional to 38,811.10, 58,217.26 and 12,157.80

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Solution

The fourth proportional to 38,811.10, 58,217.26 and 12,157.80 is: 18,236.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,811.10 : 58,217.26 = 12,157.80 : x
  2. Step 2: Convert to fraction form
    38,811.10/58,217.26 = 12,157.80/x
  3. Step 3: Cross multiply
    38,811.10x = 58,217.26 × 12,157.80
  4. Step 4: Simplify right side
    38,811.10x = 707,793,803.63
  5. Step 5: Solve for x
    x = 707,793,803.63/38,811.10
  6. Step 6: Final answer
    x = 18,236.89

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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.