Home / 21,526.77-29,705.22-11,965.91

Finding the Fourth Proportional to 21,526.77, 29,705.22 and 11,965.91

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Solution

The fourth proportional to 21,526.77, 29,705.22 and 11,965.91 is: 16,511.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526.77 : 29,705.22 = 11,965.91 : x
  2. Step 2: Convert to fraction form
    21,526.77/29,705.22 = 11,965.91/x
  3. Step 3: Cross multiply
    21,526.77x = 29,705.22 × 11,965.91
  4. Step 4: Simplify right side
    21,526.77x = 355,449,840.52
  5. Step 5: Solve for x
    x = 355,449,840.52/21,526.77
  6. Step 6: Final answer
    x = 16,511.99

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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.