Home / 18,337.49-25,208.43-15,775.89

Finding the Fourth Proportional to 18,337.49, 25,208.43 and 15,775.89

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Solution

The fourth proportional to 18,337.49, 25,208.43 and 15,775.89 is: 21,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.49 : 25,208.43 = 15,775.89 : x
  2. Step 2: Convert to fraction form
    18,337.49/25,208.43 = 15,775.89/x
  3. Step 3: Cross multiply
    18,337.49x = 25,208.43 × 15,775.89
  4. Step 4: Simplify right side
    18,337.49x = 397,685,418.75
  5. Step 5: Solve for x
    x = 397,685,418.75/18,337.49
  6. Step 6: Final answer
    x = 21,687.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.