Home / 30,103.88-45,148.56-12,564.20

Finding the Fourth Proportional to 30,103.88, 45,148.56 and 12,564.20

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Solution

The fourth proportional to 30,103.88, 45,148.56 and 12,564.20 is: 18,843.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,103.88 : 45,148.56 = 12,564.20 : x
  2. Step 2: Convert to fraction form
    30,103.88/45,148.56 = 12,564.20/x
  3. Step 3: Cross multiply
    30,103.88x = 45,148.56 × 12,564.20
  4. Step 4: Simplify right side
    30,103.88x = 567,255,537.55
  5. Step 5: Solve for x
    x = 567,255,537.55/30,103.88
  6. Step 6: Final answer
    x = 18,843.27

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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.