Home / 30,018.85-41,423.29-17,268.64

Finding the Fourth Proportional to 30,018.85, 41,423.29 and 17,268.64

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Solution

The fourth proportional to 30,018.85, 41,423.29 and 17,268.64 is: 23,829.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,018.85 : 41,423.29 = 17,268.64 : x
  2. Step 2: Convert to fraction form
    30,018.85/41,423.29 = 17,268.64/x
  3. Step 3: Cross multiply
    30,018.85x = 41,423.29 × 17,268.64
  4. Step 4: Simplify right side
    30,018.85x = 715,323,735.90
  5. Step 5: Solve for x
    x = 715,323,735.90/30,018.85
  6. Step 6: Final answer
    x = 23,829.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.