Home / 28,485.07-42,703.00-10,942.90

Finding the Fourth Proportional to 28,485.07, 42,703.00 and 10,942.90

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Solution

The fourth proportional to 28,485.07, 42,703.00 and 10,942.90 is: 16,404.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,485.07 : 42,703.00 = 10,942.90 : x
  2. Step 2: Convert to fraction form
    28,485.07/42,703.00 = 10,942.90/x
  3. Step 3: Cross multiply
    28,485.07x = 42,703.00 × 10,942.90
  4. Step 4: Simplify right side
    28,485.07x = 467,294,524.59
  5. Step 5: Solve for x
    x = 467,294,524.59/28,485.07
  6. Step 6: Final answer
    x = 16,404.89

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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.