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Finding the Fourth Proportional to 30,785.76, 46,103.04 and 19,659.60

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Solution

The fourth proportional to 30,785.76, 46,103.04 and 19,659.60 is: 29,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,785.76 : 46,103.04 = 19,659.60 : x
  2. Step 2: Convert to fraction form
    30,785.76/46,103.04 = 19,659.60/x
  3. Step 3: Cross multiply
    30,785.76x = 46,103.04 × 19,659.60
  4. Step 4: Simplify right side
    30,785.76x = 906,367,325.18
  5. Step 5: Solve for x
    x = 906,367,325.18/30,785.76
  6. Step 6: Final answer
    x = 29,441.12

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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.