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Finding the Fourth Proportional to 28,235.63, 38,958.63 and 16,900.82

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Solution

The fourth proportional to 28,235.63, 38,958.63 and 16,900.82 is: 23,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.63 : 38,958.63 = 16,900.82 : x
  2. Step 2: Convert to fraction form
    28,235.63/38,958.63 = 16,900.82/x
  3. Step 3: Cross multiply
    28,235.63x = 38,958.63 × 16,900.82
  4. Step 4: Simplify right side
    28,235.63x = 658,432,776.07
  5. Step 5: Solve for x
    x = 658,432,776.07/28,235.63
  6. Step 6: Final answer
    x = 23,319.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.