Home / 13,889.03-20,838.40-4,028.90

Finding the Fourth Proportional to 13,889.03, 20,838.40 and 4,028.90

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Solution

The fourth proportional to 13,889.03, 20,838.40 and 4,028.90 is: 6,044.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.03 : 20,838.40 = 4,028.90 : x
  2. Step 2: Convert to fraction form
    13,889.03/20,838.40 = 4,028.90/x
  3. Step 3: Cross multiply
    13,889.03x = 20,838.40 × 4,028.90
  4. Step 4: Simplify right side
    13,889.03x = 83,955,715.50
  5. Step 5: Solve for x
    x = 83,955,715.50/13,889.03
  6. Step 6: Final answer
    x = 6,044.75

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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.