Home / 28,283.82-39,031.92-15,537.26

Finding the Fourth Proportional to 28,283.82, 39,031.92 and 15,537.26

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Solution

The fourth proportional to 28,283.82, 39,031.92 and 15,537.26 is: 21,441.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283.82 : 39,031.92 = 15,537.26 : x
  2. Step 2: Convert to fraction form
    28,283.82/39,031.92 = 15,537.26/x
  3. Step 3: Cross multiply
    28,283.82x = 39,031.92 × 15,537.26
  4. Step 4: Simplify right side
    28,283.82x = 606,449,148.55
  5. Step 5: Solve for x
    x = 606,449,148.55/28,283.82
  6. Step 6: Final answer
    x = 21,441.56

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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.