Home / 25,379.78-35,025.03-13,895.49

Finding the Fourth Proportional to 25,379.78, 35,025.03 and 13,895.49

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Solution

The fourth proportional to 25,379.78, 35,025.03 and 13,895.49 is: 19,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,379.78 : 35,025.03 = 13,895.49 : x
  2. Step 2: Convert to fraction form
    25,379.78/35,025.03 = 13,895.49/x
  3. Step 3: Cross multiply
    25,379.78x = 35,025.03 × 13,895.49
  4. Step 4: Simplify right side
    25,379.78x = 486,689,954.11
  5. Step 5: Solve for x
    x = 486,689,954.11/25,379.78
  6. Step 6: Final answer
    x = 19,176.29

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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.