Home / 38,869.34-53,639.07-21,641.54

Finding the Fourth Proportional to 38,869.34, 53,639.07 and 21,641.54

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Solution

The fourth proportional to 38,869.34, 53,639.07 and 21,641.54 is: 29,864.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,869.34 : 53,639.07 = 21,641.54 : x
  2. Step 2: Convert to fraction form
    38,869.34/53,639.07 = 21,641.54/x
  3. Step 3: Cross multiply
    38,869.34x = 53,639.07 × 21,641.54
  4. Step 4: Simplify right side
    38,869.34x = 1,160,832,078.97
  5. Step 5: Solve for x
    x = 1,160,832,078.97/38,869.34
  6. Step 6: Final answer
    x = 29,864.98

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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.