Home / 20,002.21-30,022.16-10,148.56

Finding the Fourth Proportional to 20,002.21, 30,022.16 and 10,148.56

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Solution

The fourth proportional to 20,002.21, 30,022.16 and 10,148.56 is: 15,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,002.21 : 30,022.16 = 10,148.56 : x
  2. Step 2: Convert to fraction form
    20,002.21/30,022.16 = 10,148.56/x
  3. Step 3: Cross multiply
    20,002.21x = 30,022.16 × 10,148.56
  4. Step 4: Simplify right side
    20,002.21x = 304,681,692.09
  5. Step 5: Solve for x
    x = 304,681,692.09/20,002.21
  6. Step 6: Final answer
    x = 15,232.40

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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.