Home / 55,628.64-83,451.60-18,684

Finding the Fourth Proportional to 55,628.64, 83,451.60 and 18,684

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Solution

The fourth proportional to 55,628.64, 83,451.60 and 18,684 is: 28,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,628.64 : 83,451.60 = 18,684 : x
  2. Step 2: Convert to fraction form
    55,628.64/83,451.60 = 18,684/x
  3. Step 3: Cross multiply
    55,628.64x = 83,451.60 × 18,684
  4. Step 4: Simplify right side
    55,628.64x = 1,559,209,694.40
  5. Step 5: Solve for x
    x = 1,559,209,694.40/55,628.64
  6. Step 6: Final answer
    x = 28,028.90

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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.