Home / 28,559.88-39,412.86-15,984.60

Finding the Fourth Proportional to 28,559.88, 39,412.86 and 15,984.60

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Solution

The fourth proportional to 28,559.88, 39,412.86 and 15,984.60 is: 22,058.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.88 : 39,412.86 = 15,984.60 : x
  2. Step 2: Convert to fraction form
    28,559.88/39,412.86 = 15,984.60/x
  3. Step 3: Cross multiply
    28,559.88x = 39,412.86 × 15,984.60
  4. Step 4: Simplify right side
    28,559.88x = 629,998,801.96
  5. Step 5: Solve for x
    x = 629,998,801.96/28,559.88
  6. Step 6: Final answer
    x = 22,058.87

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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.