Home / 20,168.90-30,262.26-7,030.70

Finding the Fourth Proportional to 20,168.90, 30,262.26 and 7,030.70

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Solution

The fourth proportional to 20,168.90, 30,262.26 and 7,030.70 is: 10,549.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.90 : 30,262.26 = 7,030.70 : x
  2. Step 2: Convert to fraction form
    20,168.90/30,262.26 = 7,030.70/x
  3. Step 3: Cross multiply
    20,168.90x = 30,262.26 × 7,030.70
  4. Step 4: Simplify right side
    20,168.90x = 212,764,871.38
  5. Step 5: Solve for x
    x = 212,764,871.38/20,168.90
  6. Step 6: Final answer
    x = 10,549.16

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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.