Home / 38,999.78-58,499.76-12,706.57

Finding the Fourth Proportional to 38,999.78, 58,499.76 and 12,706.57

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Solution

The fourth proportional to 38,999.78, 58,499.76 and 12,706.57 is: 19,059.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,999.78 : 58,499.76 = 12,706.57 : x
  2. Step 2: Convert to fraction form
    38,999.78/58,499.76 = 12,706.57/x
  3. Step 3: Cross multiply
    38,999.78x = 58,499.76 × 12,706.57
  4. Step 4: Simplify right side
    38,999.78x = 743,331,002.92
  5. Step 5: Solve for x
    x = 743,331,002.92/38,999.78
  6. Step 6: Final answer
    x = 19,059.88

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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.