Home / 18,128.17-25,016.70-10,170.22

Finding the Fourth Proportional to 18,128.17, 25,016.70 and 10,170.22

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Solution

The fourth proportional to 18,128.17, 25,016.70 and 10,170.22 is: 14,034.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.17 : 25,016.70 = 10,170.22 : x
  2. Step 2: Convert to fraction form
    18,128.17/25,016.70 = 10,170.22/x
  3. Step 3: Cross multiply
    18,128.17x = 25,016.70 × 10,170.22
  4. Step 4: Simplify right side
    18,128.17x = 254,425,342.67
  5. Step 5: Solve for x
    x = 254,425,342.67/18,128.17
  6. Step 6: Final answer
    x = 14,034.81

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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.