Home / 20,676.63-31,003.20-14,110.77

Finding the Fourth Proportional to 20,676.63, 31,003.20 and 14,110.77

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Solution

The fourth proportional to 20,676.63, 31,003.20 and 14,110.77 is: 21,158.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.63 : 31,003.20 = 14,110.77 : x
  2. Step 2: Convert to fraction form
    20,676.63/31,003.20 = 14,110.77/x
  3. Step 3: Cross multiply
    20,676.63x = 31,003.20 × 14,110.77
  4. Step 4: Simplify right side
    20,676.63x = 437,479,024.46
  5. Step 5: Solve for x
    x = 437,479,024.46/20,676.63
  6. Step 6: Final answer
    x = 21,158.14

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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.