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Finding the Fourth Proportional to 28,484.27, 42,727.08 and 8,762.99

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Solution

The fourth proportional to 28,484.27, 42,727.08 and 8,762.99 is: 13,144.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,484.27 : 42,727.08 = 8,762.99 : x
  2. Step 2: Convert to fraction form
    28,484.27/42,727.08 = 8,762.99/x
  3. Step 3: Cross multiply
    28,484.27x = 42,727.08 × 8,762.99
  4. Step 4: Simplify right side
    28,484.27x = 374,416,761.13
  5. Step 5: Solve for x
    x = 374,416,761.13/28,484.27
  6. Step 6: Final answer
    x = 13,144.69

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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.