Home / 27,858.74-38,444.76-15,283.49

Finding the Fourth Proportional to 27,858.74, 38,444.76 and 15,283.49

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Solution

The fourth proportional to 27,858.74, 38,444.76 and 15,283.49 is: 21,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858.74 : 38,444.76 = 15,283.49 : x
  2. Step 2: Convert to fraction form
    27,858.74/38,444.76 = 15,283.49/x
  3. Step 3: Cross multiply
    27,858.74x = 38,444.76 × 15,283.49
  4. Step 4: Simplify right side
    27,858.74x = 587,569,912.79
  5. Step 5: Solve for x
    x = 587,569,912.79/27,858.74
  6. Step 6: Final answer
    x = 21,091.05

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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.