Home / 19,885.20-29,818.08-11,568.12

Finding the Fourth Proportional to 19,885.20, 29,818.08 and 11,568.12

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Solution

The fourth proportional to 19,885.20, 29,818.08 and 11,568.12 is: 17,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,885.20 : 29,818.08 = 11,568.12 : x
  2. Step 2: Convert to fraction form
    19,885.20/29,818.08 = 11,568.12/x
  3. Step 3: Cross multiply
    19,885.20x = 29,818.08 × 11,568.12
  4. Step 4: Simplify right side
    19,885.20x = 344,939,127.61
  5. Step 5: Solve for x
    x = 344,939,127.61/19,885.20
  6. Step 6: Final answer
    x = 17,346.53

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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.