Home / 19,874.41-27,434.50-11,915.10

Finding the Fourth Proportional to 19,874.41, 27,434.50 and 11,915.10

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Solution

The fourth proportional to 19,874.41, 27,434.50 and 11,915.10 is: 16,447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.41 : 27,434.50 = 11,915.10 : x
  2. Step 2: Convert to fraction form
    19,874.41/27,434.50 = 11,915.10/x
  3. Step 3: Cross multiply
    19,874.41x = 27,434.50 × 11,915.10
  4. Step 4: Simplify right side
    19,874.41x = 326,884,781.16
  5. Step 5: Solve for x
    x = 326,884,781.16/19,874.41
  6. Step 6: Final answer
    x = 16,447.52

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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.