Home / 36,139.90-54,211.37-12,766.46

Finding the Fourth Proportional to 36,139.90, 54,211.37 and 12,766.46

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Solution

The fourth proportional to 36,139.90, 54,211.37 and 12,766.46 is: 19,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,139.90 : 54,211.37 = 12,766.46 : x
  2. Step 2: Convert to fraction form
    36,139.90/54,211.37 = 12,766.46/x
  3. Step 3: Cross multiply
    36,139.90x = 54,211.37 × 12,766.46
  4. Step 4: Simplify right side
    36,139.90x = 692,087,286.65
  5. Step 5: Solve for x
    x = 692,087,286.65/36,139.90
  6. Step 6: Final answer
    x = 19,150.23

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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.