Home / 18,745.90-25,888.71-16,215.87

Finding the Fourth Proportional to 18,745.90, 25,888.71 and 16,215.87

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Solution

The fourth proportional to 18,745.90, 25,888.71 and 16,215.87 is: 22,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.90 : 25,888.71 = 16,215.87 : x
  2. Step 2: Convert to fraction form
    18,745.90/25,888.71 = 16,215.87/x
  3. Step 3: Cross multiply
    18,745.90x = 25,888.71 × 16,215.87
  4. Step 4: Simplify right side
    18,745.90x = 419,807,955.83
  5. Step 5: Solve for x
    x = 419,807,955.83/18,745.90
  6. Step 6: Final answer
    x = 22,394.65

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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.