Home / 18,072.63-27,150.48-12,820.68

Finding the Fourth Proportional to 18,072.63, 27,150.48 and 12,820.68

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Solution

The fourth proportional to 18,072.63, 27,150.48 and 12,820.68 is: 19,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.63 : 27,150.48 = 12,820.68 : x
  2. Step 2: Convert to fraction form
    18,072.63/27,150.48 = 12,820.68/x
  3. Step 3: Cross multiply
    18,072.63x = 27,150.48 × 12,820.68
  4. Step 4: Simplify right side
    18,072.63x = 348,087,615.93
  5. Step 5: Solve for x
    x = 348,087,615.93/18,072.63
  6. Step 6: Final answer
    x = 19,260.48

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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.