Home / 20,109.60-30,134.70-14,574.60

Finding the Fourth Proportional to 20,109.60, 30,134.70 and 14,574.60

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Solution

The fourth proportional to 20,109.60, 30,134.70 and 14,574.60 is: 21,840.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.60 : 30,134.70 = 14,574.60 : x
  2. Step 2: Convert to fraction form
    20,109.60/30,134.70 = 14,574.60/x
  3. Step 3: Cross multiply
    20,109.60x = 30,134.70 × 14,574.60
  4. Step 4: Simplify right side
    20,109.60x = 439,201,198.62
  5. Step 5: Solve for x
    x = 439,201,198.62/20,109.60
  6. Step 6: Final answer
    x = 21,840.37

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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.