Home / 28,942.17-43,412.79-9,220.59

Finding the Fourth Proportional to 28,942.17, 43,412.79 and 9,220.59

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Solution

The fourth proportional to 28,942.17, 43,412.79 and 9,220.59 is: 13,830.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,942.17 : 43,412.79 = 9,220.59 : x
  2. Step 2: Convert to fraction form
    28,942.17/43,412.79 = 9,220.59/x
  3. Step 3: Cross multiply
    28,942.17x = 43,412.79 × 9,220.59
  4. Step 4: Simplify right side
    28,942.17x = 400,291,571.92
  5. Step 5: Solve for x
    x = 400,291,571.92/28,942.17
  6. Step 6: Final answer
    x = 13,830.74

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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.