Home / 25,887.16-38,813.44-20,895.67

Finding the Fourth Proportional to 25,887.16, 38,813.44 and 20,895.67

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Solution

The fourth proportional to 25,887.16, 38,813.44 and 20,895.67 is: 31,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,887.16 : 38,813.44 = 20,895.67 : x
  2. Step 2: Convert to fraction form
    25,887.16/38,813.44 = 20,895.67/x
  3. Step 3: Cross multiply
    25,887.16x = 38,813.44 × 20,895.67
  4. Step 4: Simplify right side
    25,887.16x = 811,032,833.80
  5. Step 5: Solve for x
    x = 811,032,833.80/25,887.16
  6. Step 6: Final answer
    x = 31,329.54

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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.