Home / 36,418.88-54,628.35-20,825.57

Finding the Fourth Proportional to 36,418.88, 54,628.35 and 20,825.57

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Solution

The fourth proportional to 36,418.88, 54,628.35 and 20,825.57 is: 31,238.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,418.88 : 54,628.35 = 20,825.57 : x
  2. Step 2: Convert to fraction form
    36,418.88/54,628.35 = 20,825.57/x
  3. Step 3: Cross multiply
    36,418.88x = 54,628.35 × 20,825.57
  4. Step 4: Simplify right side
    36,418.88x = 1,137,666,253.77
  5. Step 5: Solve for x
    x = 1,137,666,253.77/36,418.88
  6. Step 6: Final answer
    x = 31,238.37

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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.