Home / 21,975.03-30,324.03-12,283.86

Finding the Fourth Proportional to 21,975.03, 30,324.03 and 12,283.86

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Solution

The fourth proportional to 21,975.03, 30,324.03 and 12,283.86 is: 16,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.03 : 30,324.03 = 12,283.86 : x
  2. Step 2: Convert to fraction form
    21,975.03/30,324.03 = 12,283.86/x
  3. Step 3: Cross multiply
    21,975.03x = 30,324.03 × 12,283.86
  4. Step 4: Simplify right side
    21,975.03x = 372,496,139.16
  5. Step 5: Solve for x
    x = 372,496,139.16/21,975.03
  6. Step 6: Final answer
    x = 16,950.88

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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.