Home / 38,611.88-57,880.83-12,299.57

Finding the Fourth Proportional to 38,611.88, 57,880.83 and 12,299.57

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Solution

The fourth proportional to 38,611.88, 57,880.83 and 12,299.57 is: 18,437.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,611.88 : 57,880.83 = 12,299.57 : x
  2. Step 2: Convert to fraction form
    38,611.88/57,880.83 = 12,299.57/x
  3. Step 3: Cross multiply
    38,611.88x = 57,880.83 × 12,299.57
  4. Step 4: Simplify right side
    38,611.88x = 711,909,320.24
  5. Step 5: Solve for x
    x = 711,909,320.24/38,611.88
  6. Step 6: Final answer
    x = 18,437.57

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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.