Home / 28,100.36-38,778.04-15,353.27

Finding the Fourth Proportional to 28,100.36, 38,778.04 and 15,353.27

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Solution

The fourth proportional to 28,100.36, 38,778.04 and 15,353.27 is: 21,187.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,100.36 : 38,778.04 = 15,353.27 : x
  2. Step 2: Convert to fraction form
    28,100.36/38,778.04 = 15,353.27/x
  3. Step 3: Cross multiply
    28,100.36x = 38,778.04 × 15,353.27
  4. Step 4: Simplify right side
    28,100.36x = 595,369,485.92
  5. Step 5: Solve for x
    x = 595,369,485.92/28,100.36
  6. Step 6: Final answer
    x = 21,187.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.