Home / 28,146.36-42,219.60-11,506.38

Finding the Fourth Proportional to 28,146.36, 42,219.60 and 11,506.38

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Solution

The fourth proportional to 28,146.36, 42,219.60 and 11,506.38 is: 17,259.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.36 : 42,219.60 = 11,506.38 : x
  2. Step 2: Convert to fraction form
    28,146.36/42,219.60 = 11,506.38/x
  3. Step 3: Cross multiply
    28,146.36x = 42,219.60 × 11,506.38
  4. Step 4: Simplify right side
    28,146.36x = 485,794,761.05
  5. Step 5: Solve for x
    x = 485,794,761.05/28,146.36
  6. Step 6: Final answer
    x = 17,259.59

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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.