Home / 37,091.10-51,186-20,738.40

Finding the Fourth Proportional to 37,091.10, 51,186 and 20,738.40

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Solution

The fourth proportional to 37,091.10, 51,186 and 20,738.40 is: 28,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,091.10 : 51,186 = 20,738.40 : x
  2. Step 2: Convert to fraction form
    37,091.10/51,186 = 20,738.40/x
  3. Step 3: Cross multiply
    37,091.10x = 51,186 × 20,738.40
  4. Step 4: Simplify right side
    37,091.10x = 1,061,515,742.40
  5. Step 5: Solve for x
    x = 1,061,515,742.40/37,091.10
  6. Step 6: Final answer
    x = 28,619.15

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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.