Home / 28,650.30-42,975.21-11,132.46

Finding the Fourth Proportional to 28,650.30, 42,975.21 and 11,132.46

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Solution

The fourth proportional to 28,650.30, 42,975.21 and 11,132.46 is: 16,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.30 : 42,975.21 = 11,132.46 : x
  2. Step 2: Convert to fraction form
    28,650.30/42,975.21 = 11,132.46/x
  3. Step 3: Cross multiply
    28,650.30x = 42,975.21 × 11,132.46
  4. Step 4: Simplify right side
    28,650.30x = 478,419,806.32
  5. Step 5: Solve for x
    x = 478,419,806.32/28,650.30
  6. Step 6: Final answer
    x = 16,698.60

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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.