Home / 28,334.88-39,102.17-15,759.63

Finding the Fourth Proportional to 28,334.88, 39,102.17 and 15,759.63

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Solution

The fourth proportional to 28,334.88, 39,102.17 and 15,759.63 is: 21,748.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.88 : 39,102.17 = 15,759.63 : x
  2. Step 2: Convert to fraction form
    28,334.88/39,102.17 = 15,759.63/x
  3. Step 3: Cross multiply
    28,334.88x = 39,102.17 × 15,759.63
  4. Step 4: Simplify right side
    28,334.88x = 616,235,652.60
  5. Step 5: Solve for x
    x = 616,235,652.60/28,334.88
  6. Step 6: Final answer
    x = 21,748.31

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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.