Home / 30,084.12-45,076.86-21,303.27

Finding the Fourth Proportional to 30,084.12, 45,076.86 and 21,303.27

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Solution

The fourth proportional to 30,084.12, 45,076.86 and 21,303.27 is: 31,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,084.12 : 45,076.86 = 21,303.27 : x
  2. Step 2: Convert to fraction form
    30,084.12/45,076.86 = 21,303.27/x
  3. Step 3: Cross multiply
    30,084.12x = 45,076.86 × 21,303.27
  4. Step 4: Simplify right side
    30,084.12x = 960,284,519.33
  5. Step 5: Solve for x
    x = 960,284,519.33/30,084.12
  6. Step 6: Final answer
    x = 31,919.98

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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.