Home / 14,028.76-21,043.28-3,640.51

Finding the Fourth Proportional to 14,028.76, 21,043.28 and 3,640.51

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Solution

The fourth proportional to 14,028.76, 21,043.28 and 3,640.51 is: 5,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.76 : 21,043.28 = 3,640.51 : x
  2. Step 2: Convert to fraction form
    14,028.76/21,043.28 = 3,640.51/x
  3. Step 3: Cross multiply
    14,028.76x = 21,043.28 × 3,640.51
  4. Step 4: Simplify right side
    14,028.76x = 76,608,271.27
  5. Step 5: Solve for x
    x = 76,608,271.27/14,028.76
  6. Step 6: Final answer
    x = 5,460.80

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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.