Home / 19,840.59-29,721.20-11,938.73

Finding the Fourth Proportional to 19,840.59, 29,721.20 and 11,938.73

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Solution

The fourth proportional to 19,840.59, 29,721.20 and 11,938.73 is: 17,884.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.59 : 29,721.20 = 11,938.73 : x
  2. Step 2: Convert to fraction form
    19,840.59/29,721.20 = 11,938.73/x
  3. Step 3: Cross multiply
    19,840.59x = 29,721.20 × 11,938.73
  4. Step 4: Simplify right side
    19,840.59x = 354,833,173.78
  5. Step 5: Solve for x
    x = 354,833,173.78/19,840.59
  6. Step 6: Final answer
    x = 17,884.20

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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.