Home / 20,676.60-31,014.72-5,094.36

Finding the Fourth Proportional to 20,676.60, 31,014.72 and 5,094.36

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Solution

The fourth proportional to 20,676.60, 31,014.72 and 5,094.36 is: 7,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.60 : 31,014.72 = 5,094.36 : x
  2. Step 2: Convert to fraction form
    20,676.60/31,014.72 = 5,094.36/x
  3. Step 3: Cross multiply
    20,676.60x = 31,014.72 × 5,094.36
  4. Step 4: Simplify right side
    20,676.60x = 158,000,148.98
  5. Step 5: Solve for x
    x = 158,000,148.98/20,676.60
  6. Step 6: Final answer
    x = 7,641.50

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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.