Home / 30,287.43-45,438.44-12,762.27

Finding the Fourth Proportional to 30,287.43, 45,438.44 and 12,762.27

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Solution

The fourth proportional to 30,287.43, 45,438.44 and 12,762.27 is: 19,146.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.43 : 45,438.44 = 12,762.27 : x
  2. Step 2: Convert to fraction form
    30,287.43/45,438.44 = 12,762.27/x
  3. Step 3: Cross multiply
    30,287.43x = 45,438.44 × 12,762.27
  4. Step 4: Simplify right side
    30,287.43x = 579,897,575.85
  5. Step 5: Solve for x
    x = 579,897,575.85/30,287.43
  6. Step 6: Final answer
    x = 19,146.48

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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.