Home / 13,888.90-20,838.21-4,028.77

Finding the Fourth Proportional to 13,888.90, 20,838.21 and 4,028.77

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Solution

The fourth proportional to 13,888.90, 20,838.21 and 4,028.77 is: 6,044.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.90 : 20,838.21 = 4,028.77 : x
  2. Step 2: Convert to fraction form
    13,888.90/20,838.21 = 4,028.77/x
  3. Step 3: Cross multiply
    13,888.90x = 20,838.21 × 4,028.77
  4. Step 4: Simplify right side
    13,888.90x = 83,952,355.30
  5. Step 5: Solve for x
    x = 83,952,355.30/13,888.90
  6. Step 6: Final answer
    x = 6,044.56

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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.