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Finding the Fourth Proportional to 28,347.77, 42,524.06 and 8,626.50

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Solution

The fourth proportional to 28,347.77, 42,524.06 and 8,626.50 is: 12,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.77 : 42,524.06 = 8,626.50 : x
  2. Step 2: Convert to fraction form
    28,347.77/42,524.06 = 8,626.50/x
  3. Step 3: Cross multiply
    28,347.77x = 42,524.06 × 8,626.50
  4. Step 4: Simplify right side
    28,347.77x = 366,833,760.46
  5. Step 5: Solve for x
    x = 366,833,760.46/28,347.77
  6. Step 6: Final answer
    x = 12,940.48

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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.