Home / 47,078.28-70,635.60-20,764.44

Finding the Fourth Proportional to 47,078.28, 70,635.60 and 20,764.44

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Solution

The fourth proportional to 47,078.28, 70,635.60 and 20,764.44 is: 31,154.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,078.28 : 70,635.60 = 20,764.44 : x
  2. Step 2: Convert to fraction form
    47,078.28/70,635.60 = 20,764.44/x
  3. Step 3: Cross multiply
    47,078.28x = 70,635.60 × 20,764.44
  4. Step 4: Simplify right side
    47,078.28x = 1,466,708,678.06
  5. Step 5: Solve for x
    x = 1,466,708,678.06/47,078.28
  6. Step 6: Final answer
    x = 31,154.68

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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.