Home / 28,004.10-41,957.55-18,138.30

Finding the Fourth Proportional to 28,004.10, 41,957.55 and 18,138.30

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Solution

The fourth proportional to 28,004.10, 41,957.55 and 18,138.30 is: 27,175.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.10 : 41,957.55 = 18,138.30 : x
  2. Step 2: Convert to fraction form
    28,004.10/41,957.55 = 18,138.30/x
  3. Step 3: Cross multiply
    28,004.10x = 41,957.55 × 18,138.30
  4. Step 4: Simplify right side
    28,004.10x = 761,038,629.17
  5. Step 5: Solve for x
    x = 761,038,629.17/28,004.10
  6. Step 6: Final answer
    x = 27,175.97

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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.