Home / 28,441.08-42,671.49-12,647.52

Finding the Fourth Proportional to 28,441.08, 42,671.49 and 12,647.52

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Solution

The fourth proportional to 28,441.08, 42,671.49 and 12,647.52 is: 18,975.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.08 : 42,671.49 = 12,647.52 : x
  2. Step 2: Convert to fraction form
    28,441.08/42,671.49 = 12,647.52/x
  3. Step 3: Cross multiply
    28,441.08x = 42,671.49 × 12,647.52
  4. Step 4: Simplify right side
    28,441.08x = 539,688,523.20
  5. Step 5: Solve for x
    x = 539,688,523.20/28,441.08
  6. Step 6: Final answer
    x = 18,975.67

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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.