Home / 21,910.64-32,889.36-9,436.84

Finding the Fourth Proportional to 21,910.64, 32,889.36 and 9,436.84

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Solution

The fourth proportional to 21,910.64, 32,889.36 and 9,436.84 is: 14,165.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.64 : 32,889.36 = 9,436.84 : x
  2. Step 2: Convert to fraction form
    21,910.64/32,889.36 = 9,436.84/x
  3. Step 3: Cross multiply
    21,910.64x = 32,889.36 × 9,436.84
  4. Step 4: Simplify right side
    21,910.64x = 310,371,628.02
  5. Step 5: Solve for x
    x = 310,371,628.02/21,910.64
  6. Step 6: Final answer
    x = 14,165.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.