Home / 23,418.72-35,128.80-8,621.28

Finding the Fourth Proportional to 23,418.72, 35,128.80 and 8,621.28

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Solution

The fourth proportional to 23,418.72, 35,128.80 and 8,621.28 is: 12,932.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,418.72 : 35,128.80 = 8,621.28 : x
  2. Step 2: Convert to fraction form
    23,418.72/35,128.80 = 8,621.28/x
  3. Step 3: Cross multiply
    23,418.72x = 35,128.80 × 8,621.28
  4. Step 4: Simplify right side
    23,418.72x = 302,855,220.86
  5. Step 5: Solve for x
    x = 302,855,220.86/23,418.72
  6. Step 6: Final answer
    x = 12,932.19

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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.