Home / 39,081.05-58,627.04-12,780.55

Finding the Fourth Proportional to 39,081.05, 58,627.04 and 12,780.55

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Solution

The fourth proportional to 39,081.05, 58,627.04 and 12,780.55 is: 19,172.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,081.05 : 58,627.04 = 12,780.55 : x
  2. Step 2: Convert to fraction form
    39,081.05/58,627.04 = 12,780.55/x
  3. Step 3: Cross multiply
    39,081.05x = 58,627.04 × 12,780.55
  4. Step 4: Simplify right side
    39,081.05x = 749,285,605.60
  5. Step 5: Solve for x
    x = 749,285,605.60/39,081.05
  6. Step 6: Final answer
    x = 19,172.61

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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.