Home / 20,015.84-30,028.08-8,337.80

Finding the Fourth Proportional to 20,015.84, 30,028.08 and 8,337.80

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Solution

The fourth proportional to 20,015.84, 30,028.08 and 8,337.80 is: 12,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.84 : 30,028.08 = 8,337.80 : x
  2. Step 2: Convert to fraction form
    20,015.84/30,028.08 = 8,337.80/x
  3. Step 3: Cross multiply
    20,015.84x = 30,028.08 × 8,337.80
  4. Step 4: Simplify right side
    20,015.84x = 250,368,125.42
  5. Step 5: Solve for x
    x = 250,368,125.42/20,015.84
  6. Step 6: Final answer
    x = 12,508.50

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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.