Home / 28,369.70-42,536.28-13,578.26

Finding the Fourth Proportional to 28,369.70, 42,536.28 and 13,578.26

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Solution

The fourth proportional to 28,369.70, 42,536.28 and 13,578.26 is: 20,358.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.70 : 42,536.28 = 13,578.26 : x
  2. Step 2: Convert to fraction form
    28,369.70/42,536.28 = 13,578.26/x
  3. Step 3: Cross multiply
    28,369.70x = 42,536.28 × 13,578.26
  4. Step 4: Simplify right side
    28,369.70x = 577,568,669.27
  5. Step 5: Solve for x
    x = 577,568,669.27/28,369.70
  6. Step 6: Final answer
    x = 20,358.65

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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.