Home / 18,422.15-25,420.70-10,462.82

Finding the Fourth Proportional to 18,422.15, 25,420.70 and 10,462.82

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Solution

The fourth proportional to 18,422.15, 25,420.70 and 10,462.82 is: 14,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.15 : 25,420.70 = 10,462.82 : x
  2. Step 2: Convert to fraction form
    18,422.15/25,420.70 = 10,462.82/x
  3. Step 3: Cross multiply
    18,422.15x = 25,420.70 × 10,462.82
  4. Step 4: Simplify right side
    18,422.15x = 265,972,028.96
  5. Step 5: Solve for x
    x = 265,972,028.96/18,422.15
  6. Step 6: Final answer
    x = 14,437.63

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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.