Home / 28,369.41-39,136.64-18,301.09

Finding the Fourth Proportional to 28,369.41, 39,136.64 and 18,301.09

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Solution

The fourth proportional to 28,369.41, 39,136.64 and 18,301.09 is: 25,247.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.41 : 39,136.64 = 18,301.09 : x
  2. Step 2: Convert to fraction form
    28,369.41/39,136.64 = 18,301.09/x
  3. Step 3: Cross multiply
    28,369.41x = 39,136.64 × 18,301.09
  4. Step 4: Simplify right side
    28,369.41x = 716,243,054.97
  5. Step 5: Solve for x
    x = 716,243,054.97/28,369.41
  6. Step 6: Final answer
    x = 25,247.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.