Home / 30,146.79-41,616.86-20,091.99

Finding the Fourth Proportional to 30,146.79, 41,616.86 and 20,091.99

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Solution

The fourth proportional to 30,146.79, 41,616.86 and 20,091.99 is: 27,736.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,146.79 : 41,616.86 = 20,091.99 : x
  2. Step 2: Convert to fraction form
    30,146.79/41,616.86 = 20,091.99/x
  3. Step 3: Cross multiply
    30,146.79x = 41,616.86 × 20,091.99
  4. Step 4: Simplify right side
    30,146.79x = 836,165,434.49
  5. Step 5: Solve for x
    x = 836,165,434.49/30,146.79
  6. Step 6: Final answer
    x = 27,736.47

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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.