Home / 21,955.37-30,298.28-11,883.74

Finding the Fourth Proportional to 21,955.37, 30,298.28 and 11,883.74

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Solution

The fourth proportional to 21,955.37, 30,298.28 and 11,883.74 is: 16,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.37 : 30,298.28 = 11,883.74 : x
  2. Step 2: Convert to fraction form
    21,955.37/30,298.28 = 11,883.74/x
  3. Step 3: Cross multiply
    21,955.37x = 30,298.28 × 11,883.74
  4. Step 4: Simplify right side
    21,955.37x = 360,056,671.06
  5. Step 5: Solve for x
    x = 360,056,671.06/21,955.37
  6. Step 6: Final answer
    x = 16,399.48

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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.