Home / 18,220.31-25,143.51-10,262.35

Finding the Fourth Proportional to 18,220.31, 25,143.51 and 10,262.35

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Solution

The fourth proportional to 18,220.31, 25,143.51 and 10,262.35 is: 14,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.31 : 25,143.51 = 10,262.35 : x
  2. Step 2: Convert to fraction form
    18,220.31/25,143.51 = 10,262.35/x
  3. Step 3: Cross multiply
    18,220.31x = 25,143.51 × 10,262.35
  4. Step 4: Simplify right side
    18,220.31x = 258,031,499.85
  5. Step 5: Solve for x
    x = 258,031,499.85/18,220.31
  6. Step 6: Final answer
    x = 14,161.75

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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.