Home / 21,054.96-29,057.99-12,102.84

Finding the Fourth Proportional to 21,054.96, 29,057.99 and 12,102.84

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Solution

The fourth proportional to 21,054.96, 29,057.99 and 12,102.84 is: 16,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.96 : 29,057.99 = 12,102.84 : x
  2. Step 2: Convert to fraction form
    21,054.96/29,057.99 = 12,102.84/x
  3. Step 3: Cross multiply
    21,054.96x = 29,057.99 × 12,102.84
  4. Step 4: Simplify right side
    21,054.96x = 351,684,143.18
  5. Step 5: Solve for x
    x = 351,684,143.18/21,054.96
  6. Step 6: Final answer
    x = 16,703.15

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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.