Home / 28,255.92-42,389.36-10,738.08

Finding the Fourth Proportional to 28,255.92, 42,389.36 and 10,738.08

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Solution

The fourth proportional to 28,255.92, 42,389.36 and 10,738.08 is: 16,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255.92 : 42,389.36 = 10,738.08 : x
  2. Step 2: Convert to fraction form
    28,255.92/42,389.36 = 10,738.08/x
  3. Step 3: Cross multiply
    28,255.92x = 42,389.36 × 10,738.08
  4. Step 4: Simplify right side
    28,255.92x = 455,180,338.83
  5. Step 5: Solve for x
    x = 455,180,338.83/28,255.92
  6. Step 6: Final answer
    x = 16,109.20

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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.