Home / 21,620.01-29,835.84-12,060.77

Finding the Fourth Proportional to 21,620.01, 29,835.84 and 12,060.77

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Solution

The fourth proportional to 21,620.01, 29,835.84 and 12,060.77 is: 16,643.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620.01 : 29,835.84 = 12,060.77 : x
  2. Step 2: Convert to fraction form
    21,620.01/29,835.84 = 12,060.77/x
  3. Step 3: Cross multiply
    21,620.01x = 29,835.84 × 12,060.77
  4. Step 4: Simplify right side
    21,620.01x = 359,843,351.79
  5. Step 5: Solve for x
    x = 359,843,351.79/21,620.01
  6. Step 6: Final answer
    x = 16,643.99

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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.