Home / 39,091.20-58,636.80-12,798.60

Finding the Fourth Proportional to 39,091.20, 58,636.80 and 12,798.60

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Solution

The fourth proportional to 39,091.20, 58,636.80 and 12,798.60 is: 19,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,091.20 : 58,636.80 = 12,798.60 : x
  2. Step 2: Convert to fraction form
    39,091.20/58,636.80 = 12,798.60/x
  3. Step 3: Cross multiply
    39,091.20x = 58,636.80 × 12,798.60
  4. Step 4: Simplify right side
    39,091.20x = 750,468,948.48
  5. Step 5: Solve for x
    x = 750,468,948.48/39,091.20
  6. Step 6: Final answer
    x = 19,197.90

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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.