Home / 20,133.55-30,166.03-13,102.89

Finding the Fourth Proportional to 20,133.55, 30,166.03 and 13,102.89

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Solution

The fourth proportional to 20,133.55, 30,166.03 and 13,102.89 is: 19,632.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.55 : 30,166.03 = 13,102.89 : x
  2. Step 2: Convert to fraction form
    20,133.55/30,166.03 = 13,102.89/x
  3. Step 3: Cross multiply
    20,133.55x = 30,166.03 × 13,102.89
  4. Step 4: Simplify right side
    20,133.55x = 395,262,172.83
  5. Step 5: Solve for x
    x = 395,262,172.83/20,133.55
  6. Step 6: Final answer
    x = 19,632.02

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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.