Home / 38,738.43-58,102.20-12,439.77

Finding the Fourth Proportional to 38,738.43, 58,102.20 and 12,439.77

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Solution

The fourth proportional to 38,738.43, 58,102.20 and 12,439.77 is: 18,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,738.43 : 58,102.20 = 12,439.77 : x
  2. Step 2: Convert to fraction form
    38,738.43/58,102.20 = 12,439.77/x
  3. Step 3: Cross multiply
    38,738.43x = 58,102.20 × 12,439.77
  4. Step 4: Simplify right side
    38,738.43x = 722,778,004.49
  5. Step 5: Solve for x
    x = 722,778,004.49/38,738.43
  6. Step 6: Final answer
    x = 18,657.91

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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.