Home / 20,368.26-28,110.24-13,282.38

Finding the Fourth Proportional to 20,368.26, 28,110.24 and 13,282.38

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Solution

The fourth proportional to 20,368.26, 28,110.24 and 13,282.38 is: 18,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368.26 : 28,110.24 = 13,282.38 : x
  2. Step 2: Convert to fraction form
    20,368.26/28,110.24 = 13,282.38/x
  3. Step 3: Cross multiply
    20,368.26x = 28,110.24 × 13,282.38
  4. Step 4: Simplify right side
    20,368.26x = 373,370,889.57
  5. Step 5: Solve for x
    x = 373,370,889.57/20,368.26
  6. Step 6: Final answer
    x = 18,331.02

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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.