Home / 38,989.61-53,805.69-21,084.62

Finding the Fourth Proportional to 38,989.61, 53,805.69 and 21,084.62

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Solution

The fourth proportional to 38,989.61, 53,805.69 and 21,084.62 is: 29,096.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,989.61 : 53,805.69 = 21,084.62 : x
  2. Step 2: Convert to fraction form
    38,989.61/53,805.69 = 21,084.62/x
  3. Step 3: Cross multiply
    38,989.61x = 53,805.69 × 21,084.62
  4. Step 4: Simplify right side
    38,989.61x = 1,134,472,258.46
  5. Step 5: Solve for x
    x = 1,134,472,258.46/38,989.61
  6. Step 6: Final answer
    x = 29,096.79

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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.