Home / 25,769.75-38,603.39-16,978.01

Finding the Fourth Proportional to 25,769.75, 38,603.39 and 16,978.01

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Solution

The fourth proportional to 25,769.75, 38,603.39 and 16,978.01 is: 25,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,769.75 : 38,603.39 = 16,978.01 : x
  2. Step 2: Convert to fraction form
    25,769.75/38,603.39 = 16,978.01/x
  3. Step 3: Cross multiply
    25,769.75x = 38,603.39 × 16,978.01
  4. Step 4: Simplify right side
    25,769.75x = 655,408,463.55
  5. Step 5: Solve for x
    x = 655,408,463.55/25,769.75
  6. Step 6: Final answer
    x = 25,433.25

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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.