Home / 25,997.28-39,000-11,210.40

Finding the Fourth Proportional to 25,997.28, 39,000 and 11,210.40

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Solution

The fourth proportional to 25,997.28, 39,000 and 11,210.40 is: 16,817.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,997.28 : 39,000 = 11,210.40 : x
  2. Step 2: Convert to fraction form
    25,997.28/39,000 = 11,210.40/x
  3. Step 3: Cross multiply
    25,997.28x = 39,000 × 11,210.40
  4. Step 4: Simplify right side
    25,997.28x = 437,205,600
  5. Step 5: Solve for x
    x = 437,205,600/25,997.28
  6. Step 6: Final answer
    x = 16,817.36

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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.