Home / 19,921.46-29,886.87-11,162.42

Finding the Fourth Proportional to 19,921.46, 29,886.87 and 11,162.42

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Solution

The fourth proportional to 19,921.46, 29,886.87 and 11,162.42 is: 16,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.46 : 29,886.87 = 11,162.42 : x
  2. Step 2: Convert to fraction form
    19,921.46/29,886.87 = 11,162.42/x
  3. Step 3: Cross multiply
    19,921.46x = 29,886.87 × 11,162.42
  4. Step 4: Simplify right side
    19,921.46x = 333,609,795.43
  5. Step 5: Solve for x
    x = 333,609,795.43/19,921.46
  6. Step 6: Final answer
    x = 16,746.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.