Home / 20,674.98-28,521.44-12,285.54

Finding the Fourth Proportional to 20,674.98, 28,521.44 and 12,285.54

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Solution

The fourth proportional to 20,674.98, 28,521.44 and 12,285.54 is: 16,948.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.98 : 28,521.44 = 12,285.54 : x
  2. Step 2: Convert to fraction form
    20,674.98/28,521.44 = 12,285.54/x
  3. Step 3: Cross multiply
    20,674.98x = 28,521.44 × 12,285.54
  4. Step 4: Simplify right side
    20,674.98x = 350,401,291.98
  5. Step 5: Solve for x
    x = 350,401,291.98/20,674.98
  6. Step 6: Final answer
    x = 16,948.08

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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.