Home / 26,782.34-40,157.31-11,988.50

Finding the Fourth Proportional to 26,782.34, 40,157.31 and 11,988.50

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Solution

The fourth proportional to 26,782.34, 40,157.31 and 11,988.50 is: 17,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,782.34 : 40,157.31 = 11,988.50 : x
  2. Step 2: Convert to fraction form
    26,782.34/40,157.31 = 11,988.50/x
  3. Step 3: Cross multiply
    26,782.34x = 40,157.31 × 11,988.50
  4. Step 4: Simplify right side
    26,782.34x = 481,425,850.99
  5. Step 5: Solve for x
    x = 481,425,850.99/26,782.34
  6. Step 6: Final answer
    x = 17,975.50

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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.