Home / 38,630.88-57,909.33-12,318.57

Finding the Fourth Proportional to 38,630.88, 57,909.33 and 12,318.57

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Solution

The fourth proportional to 38,630.88, 57,909.33 and 12,318.57 is: 18,466.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,630.88 : 57,909.33 = 12,318.57 : x
  2. Step 2: Convert to fraction form
    38,630.88/57,909.33 = 12,318.57/x
  3. Step 3: Cross multiply
    38,630.88x = 57,909.33 × 12,318.57
  4. Step 4: Simplify right side
    38,630.88x = 713,360,135.26
  5. Step 5: Solve for x
    x = 713,360,135.26/38,630.88
  6. Step 6: Final answer
    x = 18,466.06

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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.