Home / 28,650.56-42,975.84-8,930.70

Finding the Fourth Proportional to 28,650.56, 42,975.84 and 8,930.70

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Solution

The fourth proportional to 28,650.56, 42,975.84 and 8,930.70 is: 13,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.56 : 42,975.84 = 8,930.70 : x
  2. Step 2: Convert to fraction form
    28,650.56/42,975.84 = 8,930.70/x
  3. Step 3: Cross multiply
    28,650.56x = 42,975.84 × 8,930.70
  4. Step 4: Simplify right side
    28,650.56x = 383,804,334.29
  5. Step 5: Solve for x
    x = 383,804,334.29/28,650.56
  6. Step 6: Final answer
    x = 13,396.05

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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.