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Finding the Fourth Proportional to 34,408.40, 51,605.40 and 16,890.80

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Solution

The fourth proportional to 34,408.40, 51,605.40 and 16,890.80 is: 25,332.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,408.40 : 51,605.40 = 16,890.80 : x
  2. Step 2: Convert to fraction form
    34,408.40/51,605.40 = 16,890.80/x
  3. Step 3: Cross multiply
    34,408.40x = 51,605.40 × 16,890.80
  4. Step 4: Simplify right side
    34,408.40x = 871,656,490.32
  5. Step 5: Solve for x
    x = 871,656,490.32/34,408.40
  6. Step 6: Final answer
    x = 25,332.67

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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.