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Finding the Fourth Proportional to 28,204.84, 42,310.86 and 9,476.84

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Solution

The fourth proportional to 28,204.84, 42,310.86 and 9,476.84 is: 14,216.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.84 : 42,310.86 = 9,476.84 : x
  2. Step 2: Convert to fraction form
    28,204.84/42,310.86 = 9,476.84/x
  3. Step 3: Cross multiply
    28,204.84x = 42,310.86 × 9,476.84
  4. Step 4: Simplify right side
    28,204.84x = 400,973,250.48
  5. Step 5: Solve for x
    x = 400,973,250.48/28,204.84
  6. Step 6: Final answer
    x = 14,216.47

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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.