Home / 30,383.15-41,917.66-18,897.30

Finding the Fourth Proportional to 30,383.15, 41,917.66 and 18,897.30

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Solution

The fourth proportional to 30,383.15, 41,917.66 and 18,897.30 is: 26,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,383.15 : 41,917.66 = 18,897.30 : x
  2. Step 2: Convert to fraction form
    30,383.15/41,917.66 = 18,897.30/x
  3. Step 3: Cross multiply
    30,383.15x = 41,917.66 × 18,897.30
  4. Step 4: Simplify right side
    30,383.15x = 792,130,596.32
  5. Step 5: Solve for x
    x = 792,130,596.32/30,383.15
  6. Step 6: Final answer
    x = 26,071.38

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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.