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Finding the Fourth Proportional to 28,172.52, 42,246.30 and 8,444.52

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Solution

The fourth proportional to 28,172.52, 42,246.30 and 8,444.52 is: 12,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.52 : 42,246.30 = 8,444.52 : x
  2. Step 2: Convert to fraction form
    28,172.52/42,246.30 = 8,444.52/x
  3. Step 3: Cross multiply
    28,172.52x = 42,246.30 × 8,444.52
  4. Step 4: Simplify right side
    28,172.52x = 356,749,725.28
  5. Step 5: Solve for x
    x = 356,749,725.28/28,172.52
  6. Step 6: Final answer
    x = 12,663.04

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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.