Home / 19,520.53-29,282.10-6,868.78

Finding the Fourth Proportional to 19,520.53, 29,282.10 and 6,868.78

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Solution

The fourth proportional to 19,520.53, 29,282.10 and 6,868.78 is: 10,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.53 : 29,282.10 = 6,868.78 : x
  2. Step 2: Convert to fraction form
    19,520.53/29,282.10 = 6,868.78/x
  3. Step 3: Cross multiply
    19,520.53x = 29,282.10 × 6,868.78
  4. Step 4: Simplify right side
    19,520.53x = 201,132,302.84
  5. Step 5: Solve for x
    x = 201,132,302.84/19,520.53
  6. Step 6: Final answer
    x = 10,303.63

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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.