Home / 26,072.21-35,978.77-15,455.54

Finding the Fourth Proportional to 26,072.21, 35,978.77 and 15,455.54

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Solution

The fourth proportional to 26,072.21, 35,978.77 and 15,455.54 is: 21,328.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,072.21 : 35,978.77 = 15,455.54 : x
  2. Step 2: Convert to fraction form
    26,072.21/35,978.77 = 15,455.54/x
  3. Step 3: Cross multiply
    26,072.21x = 35,978.77 × 15,455.54
  4. Step 4: Simplify right side
    26,072.21x = 556,071,318.89
  5. Step 5: Solve for x
    x = 556,071,318.89/26,072.21
  6. Step 6: Final answer
    x = 21,328.12

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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.