Home / 28,334.93-39,103.15-15,589.58

Finding the Fourth Proportional to 28,334.93, 39,103.15 and 15,589.58

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Solution

The fourth proportional to 28,334.93, 39,103.15 and 15,589.58 is: 21,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.93 : 39,103.15 = 15,589.58 : x
  2. Step 2: Convert to fraction form
    28,334.93/39,103.15 = 15,589.58/x
  3. Step 3: Cross multiply
    28,334.93x = 39,103.15 × 15,589.58
  4. Step 4: Simplify right side
    28,334.93x = 609,601,743.96
  5. Step 5: Solve for x
    x = 609,601,743.96/28,334.93
  6. Step 6: Final answer
    x = 21,514.14

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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.