Home / 21,884.32-30,200.72-11,948.32

Finding the Fourth Proportional to 21,884.32, 30,200.72 and 11,948.32

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Solution

The fourth proportional to 21,884.32, 30,200.72 and 11,948.32 is: 16,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884.32 : 30,200.72 = 11,948.32 : x
  2. Step 2: Convert to fraction form
    21,884.32/30,200.72 = 11,948.32/x
  3. Step 3: Cross multiply
    21,884.32x = 30,200.72 × 11,948.32
  4. Step 4: Simplify right side
    21,884.32x = 360,847,866.79
  5. Step 5: Solve for x
    x = 360,847,866.79/21,884.32
  6. Step 6: Final answer
    x = 16,488.88

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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.