Home / 20,076.18-30,141.86-10,222.08

Finding the Fourth Proportional to 20,076.18, 30,141.86 and 10,222.08

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Solution

The fourth proportional to 20,076.18, 30,141.86 and 10,222.08 is: 15,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.18 : 30,141.86 = 10,222.08 : x
  2. Step 2: Convert to fraction form
    20,076.18/30,141.86 = 10,222.08/x
  3. Step 3: Cross multiply
    20,076.18x = 30,141.86 × 10,222.08
  4. Step 4: Simplify right side
    20,076.18x = 308,112,453.16
  5. Step 5: Solve for x
    x = 308,112,453.16/20,076.18
  6. Step 6: Final answer
    x = 15,347.17

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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.