Home / 38,399.54-52,984.92-21,400.05

Finding the Fourth Proportional to 38,399.54, 52,984.92 and 21,400.05

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Solution

The fourth proportional to 38,399.54, 52,984.92 and 21,400.05 is: 29,528.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,399.54 : 52,984.92 = 21,400.05 : x
  2. Step 2: Convert to fraction form
    38,399.54/52,984.92 = 21,400.05/x
  3. Step 3: Cross multiply
    38,399.54x = 52,984.92 × 21,400.05
  4. Step 4: Simplify right side
    38,399.54x = 1,133,879,937.25
  5. Step 5: Solve for x
    x = 1,133,879,937.25/38,399.54
  6. Step 6: Final answer
    x = 29,528.48

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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.