Home / 19,421.04-29,136.60-6,940.56

Finding the Fourth Proportional to 19,421.04, 29,136.60 and 6,940.56

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Solution

The fourth proportional to 19,421.04, 29,136.60 and 6,940.56 is: 10,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.04 : 29,136.60 = 6,940.56 : x
  2. Step 2: Convert to fraction form
    19,421.04/29,136.60 = 6,940.56/x
  3. Step 3: Cross multiply
    19,421.04x = 29,136.60 × 6,940.56
  4. Step 4: Simplify right side
    19,421.04x = 202,224,320.50
  5. Step 5: Solve for x
    x = 202,224,320.50/19,421.04
  6. Step 6: Final answer
    x = 10,412.64

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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.