Home / 20,475.56-30,676.08-14,222.36

Finding the Fourth Proportional to 20,475.56, 30,676.08 and 14,222.36

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Solution

The fourth proportional to 20,475.56, 30,676.08 and 14,222.36 is: 21,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475.56 : 30,676.08 = 14,222.36 : x
  2. Step 2: Convert to fraction form
    20,475.56/30,676.08 = 14,222.36/x
  3. Step 3: Cross multiply
    20,475.56x = 30,676.08 × 14,222.36
  4. Step 4: Simplify right side
    20,475.56x = 436,286,253.15
  5. Step 5: Solve for x
    x = 436,286,253.15/20,475.56
  6. Step 6: Final answer
    x = 21,307.66

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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.