Home / 21,525.12-29,707.44-12,093.66

Finding the Fourth Proportional to 21,525.12, 29,707.44 and 12,093.66

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Solution

The fourth proportional to 21,525.12, 29,707.44 and 12,093.66 is: 16,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525.12 : 29,707.44 = 12,093.66 : x
  2. Step 2: Convert to fraction form
    21,525.12/29,707.44 = 12,093.66/x
  3. Step 3: Cross multiply
    21,525.12x = 29,707.44 × 12,093.66
  4. Step 4: Simplify right side
    21,525.12x = 359,271,678.83
  5. Step 5: Solve for x
    x = 359,271,678.83/21,525.12
  6. Step 6: Final answer
    x = 16,690.81

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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.