Home / 47,375.45-65,386.55-28,256.39

Finding the Fourth Proportional to 47,375.45, 65,386.55 and 28,256.39

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Solution

The fourth proportional to 47,375.45, 65,386.55 and 28,256.39 is: 38,998.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,375.45 : 65,386.55 = 28,256.39 : x
  2. Step 2: Convert to fraction form
    47,375.45/65,386.55 = 28,256.39/x
  3. Step 3: Cross multiply
    47,375.45x = 65,386.55 × 28,256.39
  4. Step 4: Simplify right side
    47,375.45x = 1,847,587,857.55
  5. Step 5: Solve for x
    x = 1,847,587,857.55/47,375.45
  6. Step 6: Final answer
    x = 38,998.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.