Home / 38,981.29-53,794.19-21,076.29

Finding the Fourth Proportional to 38,981.29, 53,794.19 and 21,076.29

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Solution

The fourth proportional to 38,981.29, 53,794.19 and 21,076.29 is: 29,085.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981.29 : 53,794.19 = 21,076.29 : x
  2. Step 2: Convert to fraction form
    38,981.29/53,794.19 = 21,076.29/x
  3. Step 3: Cross multiply
    38,981.29x = 53,794.19 × 21,076.29
  4. Step 4: Simplify right side
    38,981.29x = 1,133,781,948.76
  5. Step 5: Solve for x
    x = 1,133,781,948.76/38,981.29
  6. Step 6: Final answer
    x = 29,085.29

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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.