Home / 25,450.31-38,188.19-11,420.36

Finding the Fourth Proportional to 25,450.31, 38,188.19 and 11,420.36

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Solution

The fourth proportional to 25,450.31, 38,188.19 and 11,420.36 is: 17,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,450.31 : 38,188.19 = 11,420.36 : x
  2. Step 2: Convert to fraction form
    25,450.31/38,188.19 = 11,420.36/x
  3. Step 3: Cross multiply
    25,450.31x = 38,188.19 × 11,420.36
  4. Step 4: Simplify right side
    25,450.31x = 436,122,877.55
  5. Step 5: Solve for x
    x = 436,122,877.55/25,450.31
  6. Step 6: Final answer
    x = 17,136.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.