Home / 38,638.24-53,311.68-28,009.42

Finding the Fourth Proportional to 38,638.24, 53,311.68 and 28,009.42

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Solution

The fourth proportional to 38,638.24, 53,311.68 and 28,009.42 is: 38,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,638.24 : 53,311.68 = 28,009.42 : x
  2. Step 2: Convert to fraction form
    38,638.24/53,311.68 = 28,009.42/x
  3. Step 3: Cross multiply
    38,638.24x = 53,311.68 × 28,009.42
  4. Step 4: Simplify right side
    38,638.24x = 1,493,229,236.03
  5. Step 5: Solve for x
    x = 1,493,229,236.03/38,638.24
  6. Step 6: Final answer
    x = 38,646.41

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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.