Home / 20,528.73-30,733.12-18,558.91

Finding the Fourth Proportional to 20,528.73, 30,733.12 and 18,558.91

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Solution

The fourth proportional to 20,528.73, 30,733.12 and 18,558.91 is: 27,784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.73 : 30,733.12 = 18,558.91 : x
  2. Step 2: Convert to fraction form
    20,528.73/30,733.12 = 18,558.91/x
  3. Step 3: Cross multiply
    20,528.73x = 30,733.12 × 18,558.91
  4. Step 4: Simplify right side
    20,528.73x = 570,373,208.10
  5. Step 5: Solve for x
    x = 570,373,208.10/20,528.73
  6. Step 6: Final answer
    x = 27,784.14

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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.