Home / 27,790.56-38,349.72-15,215.04

Finding the Fourth Proportional to 27,790.56, 38,349.72 and 15,215.04

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Solution

The fourth proportional to 27,790.56, 38,349.72 and 15,215.04 is: 20,996.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.56 : 38,349.72 = 15,215.04 : x
  2. Step 2: Convert to fraction form
    27,790.56/38,349.72 = 15,215.04/x
  3. Step 3: Cross multiply
    27,790.56x = 38,349.72 × 15,215.04
  4. Step 4: Simplify right side
    27,790.56x = 583,492,523.79
  5. Step 5: Solve for x
    x = 583,492,523.79/27,790.56
  6. Step 6: Final answer
    x = 20,996.07

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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.