Home / 19,256.63-28,886.58-5,405.63

Finding the Fourth Proportional to 19,256.63, 28,886.58 and 5,405.63

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Solution

The fourth proportional to 19,256.63, 28,886.58 and 5,405.63 is: 8,108.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,256.63 : 28,886.58 = 5,405.63 : x
  2. Step 2: Convert to fraction form
    19,256.63/28,886.58 = 5,405.63/x
  3. Step 3: Cross multiply
    19,256.63x = 28,886.58 × 5,405.63
  4. Step 4: Simplify right side
    19,256.63x = 156,150,019.01
  5. Step 5: Solve for x
    x = 156,150,019.01/19,256.63
  6. Step 6: Final answer
    x = 8,108.90

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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.