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Finding the Fourth Proportional to 28,537.28, 42,806.08 and 8,817.92

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Solution

The fourth proportional to 28,537.28, 42,806.08 and 8,817.92 is: 13,226.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,537.28 : 42,806.08 = 8,817.92 : x
  2. Step 2: Convert to fraction form
    28,537.28/42,806.08 = 8,817.92/x
  3. Step 3: Cross multiply
    28,537.28x = 42,806.08 × 8,817.92
  4. Step 4: Simplify right side
    28,537.28x = 377,460,588.95
  5. Step 5: Solve for x
    x = 377,460,588.95/28,537.28
  6. Step 6: Final answer
    x = 13,226.93

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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.