Home / 21,596.88-29,811.15-12,647.26

Finding the Fourth Proportional to 21,596.88, 29,811.15 and 12,647.26

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Solution

The fourth proportional to 21,596.88, 29,811.15 and 12,647.26 is: 17,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,596.88 : 29,811.15 = 12,647.26 : x
  2. Step 2: Convert to fraction form
    21,596.88/29,811.15 = 12,647.26/x
  3. Step 3: Cross multiply
    21,596.88x = 29,811.15 × 12,647.26
  4. Step 4: Simplify right side
    21,596.88x = 377,029,364.95
  5. Step 5: Solve for x
    x = 377,029,364.95/21,596.88
  6. Step 6: Final answer
    x = 17,457.58

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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.