Home / 20,283.84-30,430.08-8,596.80

Finding the Fourth Proportional to 20,283.84, 30,430.08 and 8,596.80

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Solution

The fourth proportional to 20,283.84, 30,430.08 and 8,596.80 is: 12,897.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.84 : 30,430.08 = 8,596.80 : x
  2. Step 2: Convert to fraction form
    20,283.84/30,430.08 = 8,596.80/x
  3. Step 3: Cross multiply
    20,283.84x = 30,430.08 × 8,596.80
  4. Step 4: Simplify right side
    20,283.84x = 261,601,311.74
  5. Step 5: Solve for x
    x = 261,601,311.74/20,283.84
  6. Step 6: Final answer
    x = 12,897.03

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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.