Home / 28,593.68-42,939.24-18,615.42

Finding the Fourth Proportional to 28,593.68, 42,939.24 and 18,615.42

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Solution

The fourth proportional to 28,593.68, 42,939.24 and 18,615.42 is: 27,954.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.68 : 42,939.24 = 18,615.42 : x
  2. Step 2: Convert to fraction form
    28,593.68/42,939.24 = 18,615.42/x
  3. Step 3: Cross multiply
    28,593.68x = 42,939.24 × 18,615.42
  4. Step 4: Simplify right side
    28,593.68x = 799,331,987.08
  5. Step 5: Solve for x
    x = 799,331,987.08/28,593.68
  6. Step 6: Final answer
    x = 27,954.85

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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.