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Finding the Fourth Proportional to 28,060.86, 42,073.86 and 13,800.93

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Solution

The fourth proportional to 28,060.86, 42,073.86 and 13,800.93 is: 20,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.86 : 42,073.86 = 13,800.93 : x
  2. Step 2: Convert to fraction form
    28,060.86/42,073.86 = 13,800.93/x
  3. Step 3: Cross multiply
    28,060.86x = 42,073.86 × 13,800.93
  4. Step 4: Simplify right side
    28,060.86x = 580,658,410.89
  5. Step 5: Solve for x
    x = 580,658,410.89/28,060.86
  6. Step 6: Final answer
    x = 20,692.83

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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.