Home / 27,901.85-38,504.83-15,155.15

Finding the Fourth Proportional to 27,901.85, 38,504.83 and 15,155.15

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Solution

The fourth proportional to 27,901.85, 38,504.83 and 15,155.15 is: 20,914.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,901.85 : 38,504.83 = 15,155.15 : x
  2. Step 2: Convert to fraction form
    27,901.85/38,504.83 = 15,155.15/x
  3. Step 3: Cross multiply
    27,901.85x = 38,504.83 × 15,155.15
  4. Step 4: Simplify right side
    27,901.85x = 583,546,243.96
  5. Step 5: Solve for x
    x = 583,546,243.96/27,901.85
  6. Step 6: Final answer
    x = 20,914.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.