Home / 38,981.39-53,794.28-21,076.35

Finding the Fourth Proportional to 38,981.39, 53,794.28 and 21,076.35

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Solution

The fourth proportional to 38,981.39, 53,794.28 and 21,076.35 is: 29,085.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981.39 : 53,794.28 = 21,076.35 : x
  2. Step 2: Convert to fraction form
    38,981.39/53,794.28 = 21,076.35/x
  3. Step 3: Cross multiply
    38,981.39x = 53,794.28 × 21,076.35
  4. Step 4: Simplify right side
    38,981.39x = 1,133,787,108.28
  5. Step 5: Solve for x
    x = 1,133,787,108.28/38,981.39
  6. Step 6: Final answer
    x = 29,085.35

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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.