Home / 28,570.80-42,849.60-10,803.36

Finding the Fourth Proportional to 28,570.80, 42,849.60 and 10,803.36

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Solution

The fourth proportional to 28,570.80, 42,849.60 and 10,803.36 is: 16,202.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570.80 : 42,849.60 = 10,803.36 : x
  2. Step 2: Convert to fraction form
    28,570.80/42,849.60 = 10,803.36/x
  3. Step 3: Cross multiply
    28,570.80x = 42,849.60 × 10,803.36
  4. Step 4: Simplify right side
    28,570.80x = 462,919,654.66
  5. Step 5: Solve for x
    x = 462,919,654.66/28,570.80
  6. Step 6: Final answer
    x = 16,202.54

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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.