Home / 34,251.60-51,430.20-18,699.60

Finding the Fourth Proportional to 34,251.60, 51,430.20 and 18,699.60

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Solution

The fourth proportional to 34,251.60, 51,430.20 and 18,699.60 is: 28,078.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,251.60 : 51,430.20 = 18,699.60 : x
  2. Step 2: Convert to fraction form
    34,251.60/51,430.20 = 18,699.60/x
  3. Step 3: Cross multiply
    34,251.60x = 51,430.20 × 18,699.60
  4. Step 4: Simplify right side
    34,251.60x = 961,724,167.92
  5. Step 5: Solve for x
    x = 961,724,167.92/34,251.60
  6. Step 6: Final answer
    x = 28,078.23

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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.