Home / 21,669.60-29,899.26-14,115.18

Finding the Fourth Proportional to 21,669.60, 29,899.26 and 14,115.18

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Solution

The fourth proportional to 21,669.60, 29,899.26 and 14,115.18 is: 19,475.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,669.60 : 29,899.26 = 14,115.18 : x
  2. Step 2: Convert to fraction form
    21,669.60/29,899.26 = 14,115.18/x
  3. Step 3: Cross multiply
    21,669.60x = 29,899.26 × 14,115.18
  4. Step 4: Simplify right side
    21,669.60x = 422,033,436.77
  5. Step 5: Solve for x
    x = 422,033,436.77/21,669.60
  6. Step 6: Final answer
    x = 19,475.83

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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.