Home / 25,709.31-38,548.38-16,813.90

Finding the Fourth Proportional to 25,709.31, 38,548.38 and 16,813.90

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Solution

The fourth proportional to 25,709.31, 38,548.38 and 16,813.90 is: 25,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,709.31 : 38,548.38 = 16,813.90 : x
  2. Step 2: Convert to fraction form
    25,709.31/38,548.38 = 16,813.90/x
  3. Step 3: Cross multiply
    25,709.31x = 38,548.38 × 16,813.90
  4. Step 4: Simplify right side
    25,709.31x = 648,148,413.74
  5. Step 5: Solve for x
    x = 648,148,413.74/25,709.31
  6. Step 6: Final answer
    x = 25,210.65

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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.