Home / 28,682.08-39,581.73-15,936.08

Finding the Fourth Proportional to 28,682.08, 39,581.73 and 15,936.08

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Solution

The fourth proportional to 28,682.08, 39,581.73 and 15,936.08 is: 21,992.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.08 : 39,581.73 = 15,936.08 : x
  2. Step 2: Convert to fraction form
    28,682.08/39,581.73 = 15,936.08/x
  3. Step 3: Cross multiply
    28,682.08x = 39,581.73 × 15,936.08
  4. Step 4: Simplify right side
    28,682.08x = 630,777,615.82
  5. Step 5: Solve for x
    x = 630,777,615.82/28,682.08
  6. Step 6: Final answer
    x = 21,992.05

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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.