Home / 38,630.45-57,954.71-11,975.05

Finding the Fourth Proportional to 38,630.45, 57,954.71 and 11,975.05

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Solution

The fourth proportional to 38,630.45, 57,954.71 and 11,975.05 is: 17,965.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,630.45 : 57,954.71 = 11,975.05 : x
  2. Step 2: Convert to fraction form
    38,630.45/57,954.71 = 11,975.05/x
  3. Step 3: Cross multiply
    38,630.45x = 57,954.71 × 11,975.05
  4. Step 4: Simplify right side
    38,630.45x = 694,010,549.99
  5. Step 5: Solve for x
    x = 694,010,549.99/38,630.45
  6. Step 6: Final answer
    x = 17,965.38

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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.