Home / 38,786.41-58,188.72-12,490.16

Finding the Fourth Proportional to 38,786.41, 58,188.72 and 12,490.16

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Solution

The fourth proportional to 38,786.41, 58,188.72 and 12,490.16 is: 18,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,786.41 : 58,188.72 = 12,490.16 : x
  2. Step 2: Convert to fraction form
    38,786.41/58,188.72 = 12,490.16/x
  3. Step 3: Cross multiply
    38,786.41x = 58,188.72 × 12,490.16
  4. Step 4: Simplify right side
    38,786.41x = 726,786,423.00
  5. Step 5: Solve for x
    x = 726,786,423.00/38,786.41
  6. Step 6: Final answer
    x = 18,738.17

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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.