Home / 19,813.17-27,342.55-10,860.61

Finding the Fourth Proportional to 19,813.17, 27,342.55 and 10,860.61

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Solution

The fourth proportional to 19,813.17, 27,342.55 and 10,860.61 is: 14,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.17 : 27,342.55 = 10,860.61 : x
  2. Step 2: Convert to fraction form
    19,813.17/27,342.55 = 10,860.61/x
  3. Step 3: Cross multiply
    19,813.17x = 27,342.55 × 10,860.61
  4. Step 4: Simplify right side
    19,813.17x = 296,956,771.96
  5. Step 5: Solve for x
    x = 296,956,771.96/19,813.17
  6. Step 6: Final answer
    x = 14,987.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.