Home / 27,928.84-38,541.92-15,353.68

Finding the Fourth Proportional to 27,928.84, 38,541.92 and 15,353.68

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Solution

The fourth proportional to 27,928.84, 38,541.92 and 15,353.68 is: 21,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.84 : 38,541.92 = 15,353.68 : x
  2. Step 2: Convert to fraction form
    27,928.84/38,541.92 = 15,353.68/x
  3. Step 3: Cross multiply
    27,928.84x = 38,541.92 × 15,353.68
  4. Step 4: Simplify right side
    27,928.84x = 591,760,306.27
  5. Step 5: Solve for x
    x = 591,760,306.27/27,928.84
  6. Step 6: Final answer
    x = 21,188.14

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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.