Home / 38,394.39-52,983.45-21,398.55

Finding the Fourth Proportional to 38,394.39, 52,983.45 and 21,398.55

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Solution

The fourth proportional to 38,394.39, 52,983.45 and 21,398.55 is: 29,529.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,394.39 : 52,983.45 = 21,398.55 : x
  2. Step 2: Convert to fraction form
    38,394.39/52,983.45 = 21,398.55/x
  3. Step 3: Cross multiply
    38,394.39x = 52,983.45 × 21,398.55
  4. Step 4: Simplify right side
    38,394.39x = 1,133,769,004.00
  5. Step 5: Solve for x
    x = 1,133,769,004.00/38,394.39
  6. Step 6: Final answer
    x = 29,529.55

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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.