Home / 29,138.94-40,218.10-18,526.50

Finding the Fourth Proportional to 29,138.94, 40,218.10 and 18,526.50

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Solution

The fourth proportional to 29,138.94, 40,218.10 and 18,526.50 is: 25,570.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.94 : 40,218.10 = 18,526.50 : x
  2. Step 2: Convert to fraction form
    29,138.94/40,218.10 = 18,526.50/x
  3. Step 3: Cross multiply
    29,138.94x = 40,218.10 × 18,526.50
  4. Step 4: Simplify right side
    29,138.94x = 745,100,629.65
  5. Step 5: Solve for x
    x = 745,100,629.65/29,138.94
  6. Step 6: Final answer
    x = 25,570.62

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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.