Home / 27,831.17-41,742.74-9,111.96

Finding the Fourth Proportional to 27,831.17, 41,742.74 and 9,111.96

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Solution

The fourth proportional to 27,831.17, 41,742.74 and 9,111.96 is: 13,666.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,831.17 : 41,742.74 = 9,111.96 : x
  2. Step 2: Convert to fraction form
    27,831.17/41,742.74 = 9,111.96/x
  3. Step 3: Cross multiply
    27,831.17x = 41,742.74 × 9,111.96
  4. Step 4: Simplify right side
    27,831.17x = 380,358,199.95
  5. Step 5: Solve for x
    x = 380,358,199.95/27,831.17
  6. Step 6: Final answer
    x = 13,666.63

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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.