Home / 19,938.84-29,869.38-17,165.40

Finding the Fourth Proportional to 19,938.84, 29,869.38 and 17,165.40

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Solution

The fourth proportional to 19,938.84, 29,869.38 and 17,165.40 is: 25,714.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.84 : 29,869.38 = 17,165.40 : x
  2. Step 2: Convert to fraction form
    19,938.84/29,869.38 = 17,165.40/x
  3. Step 3: Cross multiply
    19,938.84x = 29,869.38 × 17,165.40
  4. Step 4: Simplify right side
    19,938.84x = 512,719,855.45
  5. Step 5: Solve for x
    x = 512,719,855.45/19,938.84
  6. Step 6: Final answer
    x = 25,714.63

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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.