Home / 27,984.42-38,618.37-15,408.36

Finding the Fourth Proportional to 27,984.42, 38,618.37 and 15,408.36

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Solution

The fourth proportional to 27,984.42, 38,618.37 and 15,408.36 is: 21,263.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,984.42 : 38,618.37 = 15,408.36 : x
  2. Step 2: Convert to fraction form
    27,984.42/38,618.37 = 15,408.36/x
  3. Step 3: Cross multiply
    27,984.42x = 38,618.37 × 15,408.36
  4. Step 4: Simplify right side
    27,984.42x = 595,045,747.57
  5. Step 5: Solve for x
    x = 595,045,747.57/27,984.42
  6. Step 6: Final answer
    x = 21,263.47

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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.