Home / 27,957.28-38,581.78-15,211.26

Finding the Fourth Proportional to 27,957.28, 38,581.78 and 15,211.26

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Solution

The fourth proportional to 27,957.28, 38,581.78 and 15,211.26 is: 20,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,957.28 : 38,581.78 = 15,211.26 : x
  2. Step 2: Convert to fraction form
    27,957.28/38,581.78 = 15,211.26/x
  3. Step 3: Cross multiply
    27,957.28x = 38,581.78 × 15,211.26
  4. Step 4: Simplify right side
    27,957.28x = 586,877,486.84
  5. Step 5: Solve for x
    x = 586,877,486.84/27,957.28
  6. Step 6: Final answer
    x = 20,991.94

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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.