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Finding the Fourth Proportional to 28,868.79, 43,305.95 and 8,092.23

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Solution

The fourth proportional to 28,868.79, 43,305.95 and 8,092.23 is: 12,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.79 : 43,305.95 = 8,092.23 : x
  2. Step 2: Convert to fraction form
    28,868.79/43,305.95 = 8,092.23/x
  3. Step 3: Cross multiply
    28,868.79x = 43,305.95 × 8,092.23
  4. Step 4: Simplify right side
    28,868.79x = 350,441,707.77
  5. Step 5: Solve for x
    x = 350,441,707.77/28,868.79
  6. Step 6: Final answer
    x = 12,139.12

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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.