Home / 28,813.60-43,220.40-9,093.68

Finding the Fourth Proportional to 28,813.60, 43,220.40 and 9,093.68

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Solution

The fourth proportional to 28,813.60, 43,220.40 and 9,093.68 is: 13,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813.60 : 43,220.40 = 9,093.68 : x
  2. Step 2: Convert to fraction form
    28,813.60/43,220.40 = 9,093.68/x
  3. Step 3: Cross multiply
    28,813.60x = 43,220.40 × 9,093.68
  4. Step 4: Simplify right side
    28,813.60x = 393,032,487.07
  5. Step 5: Solve for x
    x = 393,032,487.07/28,813.60
  6. Step 6: Final answer
    x = 13,640.52

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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.