Home / 18,581.60-25,575.84-16,809.44

Finding the Fourth Proportional to 18,581.60, 25,575.84 and 16,809.44

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Solution

The fourth proportional to 18,581.60, 25,575.84 and 16,809.44 is: 23,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.60 : 25,575.84 = 16,809.44 : x
  2. Step 2: Convert to fraction form
    18,581.60/25,575.84 = 16,809.44/x
  3. Step 3: Cross multiply
    18,581.60x = 25,575.84 × 16,809.44
  4. Step 4: Simplify right side
    18,581.60x = 429,915,547.93
  5. Step 5: Solve for x
    x = 429,915,547.93/18,581.60
  6. Step 6: Final answer
    x = 23,136.63

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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.