Home / 21,999.74-30,360.04-11,928.52

Finding the Fourth Proportional to 21,999.74, 30,360.04 and 11,928.52

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Solution

The fourth proportional to 21,999.74, 30,360.04 and 11,928.52 is: 16,461.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,999.74 : 30,360.04 = 11,928.52 : x
  2. Step 2: Convert to fraction form
    21,999.74/30,360.04 = 11,928.52/x
  3. Step 3: Cross multiply
    21,999.74x = 30,360.04 × 11,928.52
  4. Step 4: Simplify right side
    21,999.74x = 362,150,284.70
  5. Step 5: Solve for x
    x = 362,150,284.70/21,999.74
  6. Step 6: Final answer
    x = 16,461.57

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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.