Home / 10,075.17-15,102.21-3,831.28

Finding the Fourth Proportional to 10,075.17, 15,102.21 and 3,831.28

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Solution

The fourth proportional to 10,075.17, 15,102.21 and 3,831.28 is: 5,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,075.17 : 15,102.21 = 3,831.28 : x
  2. Step 2: Convert to fraction form
    10,075.17/15,102.21 = 3,831.28/x
  3. Step 3: Cross multiply
    10,075.17x = 15,102.21 × 3,831.28
  4. Step 4: Simplify right side
    10,075.17x = 57,860,795.13
  5. Step 5: Solve for x
    x = 57,860,795.13/10,075.17
  6. Step 6: Final answer
    x = 5,742.91

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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.