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Finding the Fourth Proportional to 28,528.16, 42,796.86 and 8,802.11

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Solution

The fourth proportional to 28,528.16, 42,796.86 and 8,802.11 is: 13,204.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.16 : 42,796.86 = 8,802.11 : x
  2. Step 2: Convert to fraction form
    28,528.16/42,796.86 = 8,802.11/x
  3. Step 3: Cross multiply
    28,528.16x = 42,796.86 × 8,802.11
  4. Step 4: Simplify right side
    28,528.16x = 376,702,442.44
  5. Step 5: Solve for x
    x = 376,702,442.44/28,528.16
  6. Step 6: Final answer
    x = 13,204.58

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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.