Home / 43,152.75-64,635.64-20,919.62

Finding the Fourth Proportional to 43,152.75, 64,635.64 and 20,919.62

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Solution

The fourth proportional to 43,152.75, 64,635.64 and 20,919.62 is: 31,334.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,152.75 : 64,635.64 = 20,919.62 : x
  2. Step 2: Convert to fraction form
    43,152.75/64,635.64 = 20,919.62/x
  3. Step 3: Cross multiply
    43,152.75x = 64,635.64 × 20,919.62
  4. Step 4: Simplify right side
    43,152.75x = 1,352,153,027.26
  5. Step 5: Solve for x
    x = 1,352,153,027.26/43,152.75
  6. Step 6: Final answer
    x = 31,334.11

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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.