Home / 20,075.21-30,113.30-6,748.40

Finding the Fourth Proportional to 20,075.21, 30,113.30 and 6,748.40

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Solution

The fourth proportional to 20,075.21, 30,113.30 and 6,748.40 is: 10,122.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.21 : 30,113.30 = 6,748.40 : x
  2. Step 2: Convert to fraction form
    20,075.21/30,113.30 = 6,748.40/x
  3. Step 3: Cross multiply
    20,075.21x = 30,113.30 × 6,748.40
  4. Step 4: Simplify right side
    20,075.21x = 203,216,516.49
  5. Step 5: Solve for x
    x = 203,216,516.49/20,075.21
  6. Step 6: Final answer
    x = 10,122.76

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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.