Home / 21,955.64-30,298.82-11,884.04

Finding the Fourth Proportional to 21,955.64, 30,298.82 and 11,884.04

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Solution

The fourth proportional to 21,955.64, 30,298.82 and 11,884.04 is: 16,400.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.64 : 30,298.82 = 11,884.04 : x
  2. Step 2: Convert to fraction form
    21,955.64/30,298.82 = 11,884.04/x
  3. Step 3: Cross multiply
    21,955.64x = 30,298.82 × 11,884.04
  4. Step 4: Simplify right side
    21,955.64x = 360,072,388.83
  5. Step 5: Solve for x
    x = 360,072,388.83/21,955.64
  6. Step 6: Final answer
    x = 16,400.00

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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.