Home / 21,587-29,789.22-12,027.38

Finding the Fourth Proportional to 21,587, 29,789.22 and 12,027.38

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Solution

The fourth proportional to 21,587, 29,789.22 and 12,027.38 is: 16,597.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587 : 29,789.22 = 12,027.38 : x
  2. Step 2: Convert to fraction form
    21,587/29,789.22 = 12,027.38/x
  3. Step 3: Cross multiply
    21,587x = 29,789.22 × 12,027.38
  4. Step 4: Simplify right side
    21,587x = 358,286,268.84
  5. Step 5: Solve for x
    x = 358,286,268.84/21,587
  6. Step 6: Final answer
    x = 16,597.32

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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.