Home / 36,165.21-54,256.10-13,978.77

Finding the Fourth Proportional to 36,165.21, 54,256.10 and 13,978.77

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Solution

The fourth proportional to 36,165.21, 54,256.10 and 13,978.77 is: 20,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,165.21 : 54,256.10 = 13,978.77 : x
  2. Step 2: Convert to fraction form
    36,165.21/54,256.10 = 13,978.77/x
  3. Step 3: Cross multiply
    36,165.21x = 54,256.10 × 13,978.77
  4. Step 4: Simplify right side
    36,165.21x = 758,433,473.10
  5. Step 5: Solve for x
    x = 758,433,473.10/36,165.21
  6. Step 6: Final answer
    x = 20,971.36

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1.5x scale

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.