Home / 20,066.16-27,690.96-11,113.47

Finding the Fourth Proportional to 20,066.16, 27,690.96 and 11,113.47

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Solution

The fourth proportional to 20,066.16, 27,690.96 and 11,113.47 is: 15,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.16 : 27,690.96 = 11,113.47 : x
  2. Step 2: Convert to fraction form
    20,066.16/27,690.96 = 11,113.47/x
  3. Step 3: Cross multiply
    20,066.16x = 27,690.96 × 11,113.47
  4. Step 4: Simplify right side
    20,066.16x = 307,742,597.66
  5. Step 5: Solve for x
    x = 307,742,597.66/20,066.16
  6. Step 6: Final answer
    x = 15,336.40

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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.