Home / 20,398.14-30,597.21-12,995.16

Finding the Fourth Proportional to 20,398.14, 30,597.21 and 12,995.16

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Solution

The fourth proportional to 20,398.14, 30,597.21 and 12,995.16 is: 19,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,398.14 : 30,597.21 = 12,995.16 : x
  2. Step 2: Convert to fraction form
    20,398.14/30,597.21 = 12,995.16/x
  3. Step 3: Cross multiply
    20,398.14x = 30,597.21 × 12,995.16
  4. Step 4: Simplify right side
    20,398.14x = 397,615,639.50
  5. Step 5: Solve for x
    x = 397,615,639.50/20,398.14
  6. Step 6: Final answer
    x = 19,492.74

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Double scale
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Similar ratio
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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.