Home / 28,181.90-38,889.98-16,245.74

Finding the Fourth Proportional to 28,181.90, 38,889.98 and 16,245.74

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Solution

The fourth proportional to 28,181.90, 38,889.98 and 16,245.74 is: 22,418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,181.90 : 38,889.98 = 16,245.74 : x
  2. Step 2: Convert to fraction form
    28,181.90/38,889.98 = 16,245.74/x
  3. Step 3: Cross multiply
    28,181.90x = 38,889.98 × 16,245.74
  4. Step 4: Simplify right side
    28,181.90x = 631,796,503.69
  5. Step 5: Solve for x
    x = 631,796,503.69/28,181.90
  6. Step 6: Final answer
    x = 22,418.52

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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.