Home / 25,638.48-38,453.40-8,104.32

Finding the Fourth Proportional to 25,638.48, 38,453.40 and 8,104.32

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Solution

The fourth proportional to 25,638.48, 38,453.40 and 8,104.32 is: 12,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,638.48 : 38,453.40 = 8,104.32 : x
  2. Step 2: Convert to fraction form
    25,638.48/38,453.40 = 8,104.32/x
  3. Step 3: Cross multiply
    25,638.48x = 38,453.40 × 8,104.32
  4. Step 4: Simplify right side
    25,638.48x = 311,638,658.69
  5. Step 5: Solve for x
    x = 311,638,658.69/25,638.48
  6. Step 6: Final answer
    x = 12,155.11

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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.