Home / 55,276.12-82,857.66-21,986.92

Finding the Fourth Proportional to 55,276.12, 82,857.66 and 21,986.92

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Solution

The fourth proportional to 55,276.12, 82,857.66 and 21,986.92 is: 32,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.12 : 82,857.66 = 21,986.92 : x
  2. Step 2: Convert to fraction form
    55,276.12/82,857.66 = 21,986.92/x
  3. Step 3: Cross multiply
    55,276.12x = 82,857.66 × 21,986.92
  4. Step 4: Simplify right side
    55,276.12x = 1,821,784,741.81
  5. Step 5: Solve for x
    x = 1,821,784,741.81/55,276.12
  6. Step 6: Final answer
    x = 32,957.90

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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.