Home / 20,859.72-31,289.31-5,064.89

Finding the Fourth Proportional to 20,859.72, 31,289.31 and 5,064.89

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Solution

The fourth proportional to 20,859.72, 31,289.31 and 5,064.89 is: 7,597.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859.72 : 31,289.31 = 5,064.89 : x
  2. Step 2: Convert to fraction form
    20,859.72/31,289.31 = 5,064.89/x
  3. Step 3: Cross multiply
    20,859.72x = 31,289.31 × 5,064.89
  4. Step 4: Simplify right side
    20,859.72x = 158,476,756.88
  5. Step 5: Solve for x
    x = 158,476,756.88/20,859.72
  6. Step 6: Final answer
    x = 7,597.26

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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.