Home / 28,769.36-39,697.08-18,164.72

Finding the Fourth Proportional to 28,769.36, 39,697.08 and 18,164.72

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Solution

The fourth proportional to 28,769.36, 39,697.08 and 18,164.72 is: 25,064.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,769.36 : 39,697.08 = 18,164.72 : x
  2. Step 2: Convert to fraction form
    28,769.36/39,697.08 = 18,164.72/x
  3. Step 3: Cross multiply
    28,769.36x = 39,697.08 × 18,164.72
  4. Step 4: Simplify right side
    28,769.36x = 721,086,343.02
  5. Step 5: Solve for x
    x = 721,086,343.02/28,769.36
  6. Step 6: Final answer
    x = 25,064.39

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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.