Home / 25,938.75-38,910.90-7,218.84

Finding the Fourth Proportional to 25,938.75, 38,910.90 and 7,218.84

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Solution

The fourth proportional to 25,938.75, 38,910.90 and 7,218.84 is: 10,829.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,938.75 : 38,910.90 = 7,218.84 : x
  2. Step 2: Convert to fraction form
    25,938.75/38,910.90 = 7,218.84/x
  3. Step 3: Cross multiply
    25,938.75x = 38,910.90 × 7,218.84
  4. Step 4: Simplify right side
    25,938.75x = 280,891,561.36
  5. Step 5: Solve for x
    x = 280,891,561.36/25,938.75
  6. Step 6: Final answer
    x = 10,829.03

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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.