Home / 21,775.56-30,050.63-12,217.58

Finding the Fourth Proportional to 21,775.56, 30,050.63 and 12,217.58

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Solution

The fourth proportional to 21,775.56, 30,050.63 and 12,217.58 is: 16,860.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.56 : 30,050.63 = 12,217.58 : x
  2. Step 2: Convert to fraction form
    21,775.56/30,050.63 = 12,217.58/x
  3. Step 3: Cross multiply
    21,775.56x = 30,050.63 × 12,217.58
  4. Step 4: Simplify right side
    21,775.56x = 367,145,976.08
  5. Step 5: Solve for x
    x = 367,145,976.08/21,775.56
  6. Step 6: Final answer
    x = 16,860.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.