Home / 38,399.29-52,984.58-21,399.80

Finding the Fourth Proportional to 38,399.29, 52,984.58 and 21,399.80

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Solution

The fourth proportional to 38,399.29, 52,984.58 and 21,399.80 is: 29,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,399.29 : 52,984.58 = 21,399.80 : x
  2. Step 2: Convert to fraction form
    38,399.29/52,984.58 = 21,399.80/x
  3. Step 3: Cross multiply
    38,399.29x = 52,984.58 × 21,399.80
  4. Step 4: Simplify right side
    38,399.29x = 1,133,859,308.09
  5. Step 5: Solve for x
    x = 1,133,859,308.09/38,399.29
  6. Step 6: Final answer
    x = 29,528.14

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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.