Home / 19,938.40-29,941.44-19,143.84

Finding the Fourth Proportional to 19,938.40, 29,941.44 and 19,143.84

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Solution

The fourth proportional to 19,938.40, 29,941.44 and 19,143.84 is: 28,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.40 : 29,941.44 = 19,143.84 : x
  2. Step 2: Convert to fraction form
    19,938.40/29,941.44 = 19,143.84/x
  3. Step 3: Cross multiply
    19,938.40x = 29,941.44 × 19,143.84
  4. Step 4: Simplify right side
    19,938.40x = 573,194,136.73
  5. Step 5: Solve for x
    x = 573,194,136.73/19,938.40
  6. Step 6: Final answer
    x = 28,748.25

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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.