Home / 27,636.60-38,145.96-15,700.44

Finding the Fourth Proportional to 27,636.60, 38,145.96 and 15,700.44

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Solution

The fourth proportional to 27,636.60, 38,145.96 and 15,700.44 is: 21,670.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.60 : 38,145.96 = 15,700.44 : x
  2. Step 2: Convert to fraction form
    27,636.60/38,145.96 = 15,700.44/x
  3. Step 3: Cross multiply
    27,636.60x = 38,145.96 × 15,700.44
  4. Step 4: Simplify right side
    27,636.60x = 598,908,356.22
  5. Step 5: Solve for x
    x = 598,908,356.22/27,636.60
  6. Step 6: Final answer
    x = 21,670.84

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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.