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Finding the Fourth Proportional to 28,025.84, 42,034.80 and 8,303.60

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Solution

The fourth proportional to 28,025.84, 42,034.80 and 8,303.60 is: 12,454.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.84 : 42,034.80 = 8,303.60 : x
  2. Step 2: Convert to fraction form
    28,025.84/42,034.80 = 8,303.60/x
  3. Step 3: Cross multiply
    28,025.84x = 42,034.80 × 8,303.60
  4. Step 4: Simplify right side
    28,025.84x = 349,040,165.28
  5. Step 5: Solve for x
    x = 349,040,165.28/28,025.84
  6. Step 6: Final answer
    x = 12,454.23

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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.