Home / 25,995.09-38,997.90-8,460.21

Finding the Fourth Proportional to 25,995.09, 38,997.90 and 8,460.21

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Solution

The fourth proportional to 25,995.09, 38,997.90 and 8,460.21 is: 12,692.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,995.09 : 38,997.90 = 8,460.21 : x
  2. Step 2: Convert to fraction form
    25,995.09/38,997.90 = 8,460.21/x
  3. Step 3: Cross multiply
    25,995.09x = 38,997.90 × 8,460.21
  4. Step 4: Simplify right side
    25,995.09x = 329,930,423.56
  5. Step 5: Solve for x
    x = 329,930,423.56/25,995.09
  6. Step 6: Final answer
    x = 12,692.03

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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.