Home / 28,173.90-38,889.75-17,427

Finding the Fourth Proportional to 28,173.90, 38,889.75 and 17,427

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Solution

The fourth proportional to 28,173.90, 38,889.75 and 17,427 is: 24,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.90 : 38,889.75 = 17,427 : x
  2. Step 2: Convert to fraction form
    28,173.90/38,889.75 = 17,427/x
  3. Step 3: Cross multiply
    28,173.90x = 38,889.75 × 17,427
  4. Step 4: Simplify right side
    28,173.90x = 677,731,673.25
  5. Step 5: Solve for x
    x = 677,731,673.25/28,173.90
  6. Step 6: Final answer
    x = 24,055.30

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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.