Home / 20,043.35-30,068.72-6,715.04

Finding the Fourth Proportional to 20,043.35, 30,068.72 and 6,715.04

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Solution

The fourth proportional to 20,043.35, 30,068.72 and 6,715.04 is: 10,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043.35 : 30,068.72 = 6,715.04 : x
  2. Step 2: Convert to fraction form
    20,043.35/30,068.72 = 6,715.04/x
  3. Step 3: Cross multiply
    20,043.35x = 30,068.72 × 6,715.04
  4. Step 4: Simplify right side
    20,043.35x = 201,912,498.81
  5. Step 5: Solve for x
    x = 201,912,498.81/20,043.35
  6. Step 6: Final answer
    x = 10,073.79

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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.