Home / 21,458.44-29,581.62-15,065.58

Finding the Fourth Proportional to 21,458.44, 29,581.62 and 15,065.58

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Solution

The fourth proportional to 21,458.44, 29,581.62 and 15,065.58 is: 20,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.44 : 29,581.62 = 15,065.58 : x
  2. Step 2: Convert to fraction form
    21,458.44/29,581.62 = 15,065.58/x
  3. Step 3: Cross multiply
    21,458.44x = 29,581.62 × 15,065.58
  4. Step 4: Simplify right side
    21,458.44x = 445,664,262.64
  5. Step 5: Solve for x
    x = 445,664,262.64/21,458.44
  6. Step 6: Final answer
    x = 20,768.72

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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.