Home / 30,160.42-41,622.69-20,072.74

Finding the Fourth Proportional to 30,160.42, 41,622.69 and 20,072.74

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Solution

The fourth proportional to 30,160.42, 41,622.69 and 20,072.74 is: 27,701.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,160.42 : 41,622.69 = 20,072.74 : x
  2. Step 2: Convert to fraction form
    30,160.42/41,622.69 = 20,072.74/x
  3. Step 3: Cross multiply
    30,160.42x = 41,622.69 × 20,072.74
  4. Step 4: Simplify right side
    30,160.42x = 835,481,434.47
  5. Step 5: Solve for x
    x = 835,481,434.47/30,160.42
  6. Step 6: Final answer
    x = 27,701.25

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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.