Home / 39,513.28-54,528.38-21,608.24

Finding the Fourth Proportional to 39,513.28, 54,528.38 and 21,608.24

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Solution

The fourth proportional to 39,513.28, 54,528.38 and 21,608.24 is: 29,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,513.28 : 54,528.38 = 21,608.24 : x
  2. Step 2: Convert to fraction form
    39,513.28/54,528.38 = 21,608.24/x
  3. Step 3: Cross multiply
    39,513.28x = 54,528.38 × 21,608.24
  4. Step 4: Simplify right side
    39,513.28x = 1,178,262,321.85
  5. Step 5: Solve for x
    x = 1,178,262,321.85/39,513.28
  6. Step 6: Final answer
    x = 29,819.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.