Home / 23,405.56-35,122.74-21,218.20

Finding the Fourth Proportional to 23,405.56, 35,122.74 and 21,218.20

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Solution

The fourth proportional to 23,405.56, 35,122.74 and 21,218.20 is: 31,840.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,405.56 : 35,122.74 = 21,218.20 : x
  2. Step 2: Convert to fraction form
    23,405.56/35,122.74 = 21,218.20/x
  3. Step 3: Cross multiply
    23,405.56x = 35,122.74 × 21,218.20
  4. Step 4: Simplify right side
    23,405.56x = 745,241,321.87
  5. Step 5: Solve for x
    x = 745,241,321.87/23,405.56
  6. Step 6: Final answer
    x = 31,840.35

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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.