Home / 28,327.98-39,069.36-25,143.60

Finding the Fourth Proportional to 28,327.98, 39,069.36 and 25,143.60

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Solution

The fourth proportional to 28,327.98, 39,069.36 and 25,143.60 is: 34,677.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.98 : 39,069.36 = 25,143.60 : x
  2. Step 2: Convert to fraction form
    28,327.98/39,069.36 = 25,143.60/x
  3. Step 3: Cross multiply
    28,327.98x = 39,069.36 × 25,143.60
  4. Step 4: Simplify right side
    28,327.98x = 982,344,360.10
  5. Step 5: Solve for x
    x = 982,344,360.10/28,327.98
  6. Step 6: Final answer
    x = 34,677.53

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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.