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Finding the Fourth Proportional to 28,393.52, 42,594.86 and 8,667.45

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Solution

The fourth proportional to 28,393.52, 42,594.86 and 8,667.45 is: 13,002.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,393.52 : 42,594.86 = 8,667.45 : x
  2. Step 2: Convert to fraction form
    28,393.52/42,594.86 = 8,667.45/x
  3. Step 3: Cross multiply
    28,393.52x = 42,594.86 × 8,667.45
  4. Step 4: Simplify right side
    28,393.52x = 369,188,775.97
  5. Step 5: Solve for x
    x = 369,188,775.97/28,393.52
  6. Step 6: Final answer
    x = 13,002.57

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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.