Home / 21,713.10-29,965.26-12,152.46

Finding the Fourth Proportional to 21,713.10, 29,965.26 and 12,152.46

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Solution

The fourth proportional to 21,713.10, 29,965.26 and 12,152.46 is: 16,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,713.10 : 29,965.26 = 12,152.46 : x
  2. Step 2: Convert to fraction form
    21,713.10/29,965.26 = 12,152.46/x
  3. Step 3: Cross multiply
    21,713.10x = 29,965.26 × 12,152.46
  4. Step 4: Simplify right side
    21,713.10x = 364,151,623.54
  5. Step 5: Solve for x
    x = 364,151,623.54/21,713.10
  6. Step 6: Final answer
    x = 16,771.06

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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.