Home / 22,112.06-30,503.03-15,303.20

Finding the Fourth Proportional to 22,112.06, 30,503.03 and 15,303.20

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Solution

The fourth proportional to 22,112.06, 30,503.03 and 15,303.20 is: 21,110.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,112.06 : 30,503.03 = 15,303.20 : x
  2. Step 2: Convert to fraction form
    22,112.06/30,503.03 = 15,303.20/x
  3. Step 3: Cross multiply
    22,112.06x = 30,503.03 × 15,303.20
  4. Step 4: Simplify right side
    22,112.06x = 466,793,739.66
  5. Step 5: Solve for x
    x = 466,793,739.66/22,112.06
  6. Step 6: Final answer
    x = 21,110.37

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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.