Home / 20,223.34-30,320.43-7,072.18

Finding the Fourth Proportional to 20,223.34, 30,320.43 and 7,072.18

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Solution

The fourth proportional to 20,223.34, 30,320.43 and 7,072.18 is: 10,603.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.34 : 30,320.43 = 7,072.18 : x
  2. Step 2: Convert to fraction form
    20,223.34/30,320.43 = 7,072.18/x
  3. Step 3: Cross multiply
    20,223.34x = 30,320.43 × 7,072.18
  4. Step 4: Simplify right side
    20,223.34x = 214,431,538.64
  5. Step 5: Solve for x
    x = 214,431,538.64/20,223.34
  6. Step 6: Final answer
    x = 10,603.17

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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.