Home / 28,114.24-42,178.26-19,810.46

Finding the Fourth Proportional to 28,114.24, 42,178.26 and 19,810.46

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Solution

The fourth proportional to 28,114.24, 42,178.26 and 19,810.46 is: 29,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.24 : 42,178.26 = 19,810.46 : x
  2. Step 2: Convert to fraction form
    28,114.24/42,178.26 = 19,810.46/x
  3. Step 3: Cross multiply
    28,114.24x = 42,178.26 × 19,810.46
  4. Step 4: Simplify right side
    28,114.24x = 835,570,732.60
  5. Step 5: Solve for x
    x = 835,570,732.60/28,114.24
  6. Step 6: Final answer
    x = 29,720.55

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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.