Home / 28,564.12-39,416.94-15,986.44

Finding the Fourth Proportional to 28,564.12, 39,416.94 and 15,986.44

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Solution

The fourth proportional to 28,564.12, 39,416.94 and 15,986.44 is: 22,060.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.12 : 39,416.94 = 15,986.44 : x
  2. Step 2: Convert to fraction form
    28,564.12/39,416.94 = 15,986.44/x
  3. Step 3: Cross multiply
    28,564.12x = 39,416.94 × 15,986.44
  4. Step 4: Simplify right side
    28,564.12x = 630,136,546.29
  5. Step 5: Solve for x
    x = 630,136,546.29/28,564.12
  6. Step 6: Final answer
    x = 22,060.42

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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.