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Finding the Fourth Proportional to 28,243.93, 42,339.97 and 9,762.97

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Solution

The fourth proportional to 28,243.93, 42,339.97 and 9,762.97 is: 14,635.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243.93 : 42,339.97 = 9,762.97 : x
  2. Step 2: Convert to fraction form
    28,243.93/42,339.97 = 9,762.97/x
  3. Step 3: Cross multiply
    28,243.93x = 42,339.97 × 9,762.97
  4. Step 4: Simplify right side
    28,243.93x = 413,363,856.91
  5. Step 5: Solve for x
    x = 413,363,856.91/28,243.93
  6. Step 6: Final answer
    x = 14,635.49

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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.