Home / 20,028.12-30,013.02-9,627.72

Finding the Fourth Proportional to 20,028.12, 30,013.02 and 9,627.72

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Solution

The fourth proportional to 20,028.12, 30,013.02 and 9,627.72 is: 14,427.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.12 : 30,013.02 = 9,627.72 : x
  2. Step 2: Convert to fraction form
    20,028.12/30,013.02 = 9,627.72/x
  3. Step 3: Cross multiply
    20,028.12x = 30,013.02 × 9,627.72
  4. Step 4: Simplify right side
    20,028.12x = 288,956,952.91
  5. Step 5: Solve for x
    x = 288,956,952.91/20,028.12
  6. Step 6: Final answer
    x = 14,427.56

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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.