Home / 19,916.64-29,877.60-10,561.44

Finding the Fourth Proportional to 19,916.64, 29,877.60 and 10,561.44

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Solution

The fourth proportional to 19,916.64, 29,877.60 and 10,561.44 is: 15,843.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,916.64 : 29,877.60 = 10,561.44 : x
  2. Step 2: Convert to fraction form
    19,916.64/29,877.60 = 10,561.44/x
  3. Step 3: Cross multiply
    19,916.64x = 29,877.60 × 10,561.44
  4. Step 4: Simplify right side
    19,916.64x = 315,550,479.74
  5. Step 5: Solve for x
    x = 315,550,479.74/19,916.64
  6. Step 6: Final answer
    x = 15,843.56

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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.