Home / 28,778.68-43,171.26-9,051.94

Finding the Fourth Proportional to 28,778.68, 43,171.26 and 9,051.94

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Solution

The fourth proportional to 28,778.68, 43,171.26 and 9,051.94 is: 13,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778.68 : 43,171.26 = 9,051.94 : x
  2. Step 2: Convert to fraction form
    28,778.68/43,171.26 = 9,051.94/x
  3. Step 3: Cross multiply
    28,778.68x = 43,171.26 × 9,051.94
  4. Step 4: Simplify right side
    28,778.68x = 390,783,655.24
  5. Step 5: Solve for x
    x = 390,783,655.24/28,778.68
  6. Step 6: Final answer
    x = 13,578.93

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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.