Home / 21,453.76-29,605.77-11,763.10

Finding the Fourth Proportional to 21,453.76, 29,605.77 and 11,763.10

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Solution

The fourth proportional to 21,453.76, 29,605.77 and 11,763.10 is: 16,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.76 : 29,605.77 = 11,763.10 : x
  2. Step 2: Convert to fraction form
    21,453.76/29,605.77 = 11,763.10/x
  3. Step 3: Cross multiply
    21,453.76x = 29,605.77 × 11,763.10
  4. Step 4: Simplify right side
    21,453.76x = 348,255,633.09
  5. Step 5: Solve for x
    x = 348,255,633.09/21,453.76
  6. Step 6: Final answer
    x = 16,232.85

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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.