Home / 20,172.06-30,237.45-7,013.62

Finding the Fourth Proportional to 20,172.06, 30,237.45 and 7,013.62

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Solution

The fourth proportional to 20,172.06, 30,237.45 and 7,013.62 is: 10,513.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.06 : 30,237.45 = 7,013.62 : x
  2. Step 2: Convert to fraction form
    20,172.06/30,237.45 = 7,013.62/x
  3. Step 3: Cross multiply
    20,172.06x = 30,237.45 × 7,013.62
  4. Step 4: Simplify right side
    20,172.06x = 212,073,984.07
  5. Step 5: Solve for x
    x = 212,073,984.07/20,172.06
  6. Step 6: Final answer
    x = 10,513.25

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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.