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Finding the Fourth Proportional to 28,597.97, 42,896.73 and 8,607.37

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Solution

The fourth proportional to 28,597.97, 42,896.73 and 8,607.37 is: 12,910.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597.97 : 42,896.73 = 8,607.37 : x
  2. Step 2: Convert to fraction form
    28,597.97/42,896.73 = 8,607.37/x
  3. Step 3: Cross multiply
    28,597.97x = 42,896.73 × 8,607.37
  4. Step 4: Simplify right side
    28,597.97x = 369,228,128.81
  5. Step 5: Solve for x
    x = 369,228,128.81/28,597.97
  6. Step 6: Final answer
    x = 12,910.99

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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.