Home / 19,654.20-29,438.10-11,849.40

Finding the Fourth Proportional to 19,654.20, 29,438.10 and 11,849.40

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Solution

The fourth proportional to 19,654.20, 29,438.10 and 11,849.40 is: 17,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,654.20 : 29,438.10 = 11,849.40 : x
  2. Step 2: Convert to fraction form
    19,654.20/29,438.10 = 11,849.40/x
  3. Step 3: Cross multiply
    19,654.20x = 29,438.10 × 11,849.40
  4. Step 4: Simplify right side
    19,654.20x = 348,823,822.14
  5. Step 5: Solve for x
    x = 348,823,822.14/19,654.20
  6. Step 6: Final answer
    x = 17,748.05

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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.