Home / 27,912.36-38,492.46-18,335.28

Finding the Fourth Proportional to 27,912.36, 38,492.46 and 18,335.28

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Solution

The fourth proportional to 27,912.36, 38,492.46 and 18,335.28 is: 25,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912.36 : 38,492.46 = 18,335.28 : x
  2. Step 2: Convert to fraction form
    27,912.36/38,492.46 = 18,335.28/x
  3. Step 3: Cross multiply
    27,912.36x = 38,492.46 × 18,335.28
  4. Step 4: Simplify right side
    27,912.36x = 705,770,031.99
  5. Step 5: Solve for x
    x = 705,770,031.99/27,912.36
  6. Step 6: Final answer
    x = 25,285.22

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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.