Home / 39,170.45-58,738.23-12,511.53

Finding the Fourth Proportional to 39,170.45, 58,738.23 and 12,511.53

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Solution

The fourth proportional to 39,170.45, 58,738.23 and 12,511.53 is: 18,761.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,170.45 : 58,738.23 = 12,511.53 : x
  2. Step 2: Convert to fraction form
    39,170.45/58,738.23 = 12,511.53/x
  3. Step 3: Cross multiply
    39,170.45x = 58,738.23 × 12,511.53
  4. Step 4: Simplify right side
    39,170.45x = 734,905,126.79
  5. Step 5: Solve for x
    x = 734,905,126.79/39,170.45
  6. Step 6: Final answer
    x = 18,761.72

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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.