Home / 28,181.74-38,890.72-16,245.01

Finding the Fourth Proportional to 28,181.74, 38,890.72 and 16,245.01

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Solution

The fourth proportional to 28,181.74, 38,890.72 and 16,245.01 is: 22,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.74 : 38,890.72 = 16,245.01 : x
  2. Step 2: Convert to fraction form
    28,181.74/38,890.72 = 16,245.01/x
  3. Step 3: Cross multiply
    28,181.74x = 38,890.72 × 16,245.01
  4. Step 4: Simplify right side
    28,181.74x = 631,780,135.31
  5. Step 5: Solve for x
    x = 631,780,135.31/28,181.74
  6. Step 6: Final answer
    x = 22,418.07

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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.