Home / 25,686.39-38,466.66-21,216.69

Finding the Fourth Proportional to 25,686.39, 38,466.66 and 21,216.69

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Solution

The fourth proportional to 25,686.39, 38,466.66 and 21,216.69 is: 31,773.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,686.39 : 38,466.66 = 21,216.69 : x
  2. Step 2: Convert to fraction form
    25,686.39/38,466.66 = 21,216.69/x
  3. Step 3: Cross multiply
    25,686.39x = 38,466.66 × 21,216.69
  4. Step 4: Simplify right side
    25,686.39x = 816,135,200.56
  5. Step 5: Solve for x
    x = 816,135,200.56/25,686.39
  6. Step 6: Final answer
    x = 31,773.06

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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.