Home / 38,683.98-58,022.10-12,381.66

Finding the Fourth Proportional to 38,683.98, 58,022.10 and 12,381.66

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Solution

The fourth proportional to 38,683.98, 58,022.10 and 12,381.66 is: 18,571.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,683.98 : 58,022.10 = 12,381.66 : x
  2. Step 2: Convert to fraction form
    38,683.98/58,022.10 = 12,381.66/x
  3. Step 3: Cross multiply
    38,683.98x = 58,022.10 × 12,381.66
  4. Step 4: Simplify right side
    38,683.98x = 718,409,914.69
  5. Step 5: Solve for x
    x = 718,409,914.69/38,683.98
  6. Step 6: Final answer
    x = 18,571.25

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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.