Home / 28,529.88-42,784.32-9,804.60

Finding the Fourth Proportional to 28,529.88, 42,784.32 and 9,804.60

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Solution

The fourth proportional to 28,529.88, 42,784.32 and 9,804.60 is: 14,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,529.88 : 42,784.32 = 9,804.60 : x
  2. Step 2: Convert to fraction form
    28,529.88/42,784.32 = 9,804.60/x
  3. Step 3: Cross multiply
    28,529.88x = 42,784.32 × 9,804.60
  4. Step 4: Simplify right side
    28,529.88x = 419,483,143.87
  5. Step 5: Solve for x
    x = 419,483,143.87/28,529.88
  6. Step 6: Final answer
    x = 14,703.29

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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.