Home / 21,054.29-29,055.85-12,104.60

Finding the Fourth Proportional to 21,054.29, 29,055.85 and 12,104.60

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Solution

The fourth proportional to 21,054.29, 29,055.85 and 12,104.60 is: 16,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.29 : 29,055.85 = 12,104.60 : x
  2. Step 2: Convert to fraction form
    21,054.29/29,055.85 = 12,104.60/x
  3. Step 3: Cross multiply
    21,054.29x = 29,055.85 × 12,104.60
  4. Step 4: Simplify right side
    21,054.29x = 351,709,266.37
  5. Step 5: Solve for x
    x = 351,709,266.37/21,054.29
  6. Step 6: Final answer
    x = 16,704.88

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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.