Home / 47,311.43-65,258.64-28,448.55

Finding the Fourth Proportional to 47,311.43, 65,258.64 and 28,448.55

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Solution

The fourth proportional to 47,311.43, 65,258.64 and 28,448.55 is: 39,240.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,311.43 : 65,258.64 = 28,448.55 : x
  2. Step 2: Convert to fraction form
    47,311.43/65,258.64 = 28,448.55/x
  3. Step 3: Cross multiply
    47,311.43x = 65,258.64 × 28,448.55
  4. Step 4: Simplify right side
    47,311.43x = 1,856,513,682.97
  5. Step 5: Solve for x
    x = 1,856,513,682.97/47,311.43
  6. Step 6: Final answer
    x = 39,240.28

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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.