Home / 19,708.82-29,562.15-11,915.54

Finding the Fourth Proportional to 19,708.82, 29,562.15 and 11,915.54

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Solution

The fourth proportional to 19,708.82, 29,562.15 and 11,915.54 is: 17,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.82 : 29,562.15 = 11,915.54 : x
  2. Step 2: Convert to fraction form
    19,708.82/29,562.15 = 11,915.54/x
  3. Step 3: Cross multiply
    19,708.82x = 29,562.15 × 11,915.54
  4. Step 4: Simplify right side
    19,708.82x = 352,248,980.81
  5. Step 5: Solve for x
    x = 352,248,980.81/19,708.82
  6. Step 6: Final answer
    x = 17,872.66

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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.