Home / 30,431.19-41,971.89-26,189.43

Finding the Fourth Proportional to 30,431.19, 41,971.89 and 26,189.43

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Solution

The fourth proportional to 30,431.19, 41,971.89 and 26,189.43 is: 36,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,431.19 : 41,971.89 = 26,189.43 : x
  2. Step 2: Convert to fraction form
    30,431.19/41,971.89 = 26,189.43/x
  3. Step 3: Cross multiply
    30,431.19x = 41,971.89 × 26,189.43
  4. Step 4: Simplify right side
    30,431.19x = 1,099,219,875.12
  5. Step 5: Solve for x
    x = 1,099,219,875.12/30,431.19
  6. Step 6: Final answer
    x = 36,121.49

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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.