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Finding the Fourth Proportional to 28,300.59, 42,450.93 and 8,579.16

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Solution

The fourth proportional to 28,300.59, 42,450.93 and 8,579.16 is: 12,868.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,300.59 : 42,450.93 = 8,579.16 : x
  2. Step 2: Convert to fraction form
    28,300.59/42,450.93 = 8,579.16/x
  3. Step 3: Cross multiply
    28,300.59x = 42,450.93 × 8,579.16
  4. Step 4: Simplify right side
    28,300.59x = 364,193,320.62
  5. Step 5: Solve for x
    x = 364,193,320.62/28,300.59
  6. Step 6: Final answer
    x = 12,868.75

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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.