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Finding the Fourth Proportional to 26,368.78, 36,379.87 and 15,030.09

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Solution

The fourth proportional to 26,368.78, 36,379.87 and 15,030.09 is: 20,736.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,368.78 : 36,379.87 = 15,030.09 : x
  2. Step 2: Convert to fraction form
    26,368.78/36,379.87 = 15,030.09/x
  3. Step 3: Cross multiply
    26,368.78x = 36,379.87 × 15,030.09
  4. Step 4: Simplify right side
    26,368.78x = 546,792,720.29
  5. Step 5: Solve for x
    x = 546,792,720.29/26,368.78
  6. Step 6: Final answer
    x = 20,736.37

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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.