Home / 20,676.36-28,526.94-11,723.16

Finding the Fourth Proportional to 20,676.36, 28,526.94 and 11,723.16

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Solution

The fourth proportional to 20,676.36, 28,526.94 and 11,723.16 is: 16,174.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.36 : 28,526.94 = 11,723.16 : x
  2. Step 2: Convert to fraction form
    20,676.36/28,526.94 = 11,723.16/x
  3. Step 3: Cross multiply
    20,676.36x = 28,526.94 × 11,723.16
  4. Step 4: Simplify right side
    20,676.36x = 334,425,881.93
  5. Step 5: Solve for x
    x = 334,425,881.93/20,676.36
  6. Step 6: Final answer
    x = 16,174.31

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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.