Home / 19,899.38-27,445.57-12,341.44

Finding the Fourth Proportional to 19,899.38, 27,445.57 and 12,341.44

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Solution

The fourth proportional to 19,899.38, 27,445.57 and 12,341.44 is: 17,021.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,899.38 : 27,445.57 = 12,341.44 : x
  2. Step 2: Convert to fraction form
    19,899.38/27,445.57 = 12,341.44/x
  3. Step 3: Cross multiply
    19,899.38x = 27,445.57 × 12,341.44
  4. Step 4: Simplify right side
    19,899.38x = 338,717,718.19
  5. Step 5: Solve for x
    x = 338,717,718.19/19,899.38
  6. Step 6: Final answer
    x = 17,021.53

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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.