Home / 27,656.96-38,168.16-15,082.88

Finding the Fourth Proportional to 27,656.96, 38,168.16 and 15,082.88

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Solution

The fourth proportional to 27,656.96, 38,168.16 and 15,082.88 is: 20,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,656.96 : 38,168.16 = 15,082.88 : x
  2. Step 2: Convert to fraction form
    27,656.96/38,168.16 = 15,082.88/x
  3. Step 3: Cross multiply
    27,656.96x = 38,168.16 × 15,082.88
  4. Step 4: Simplify right side
    27,656.96x = 575,685,777.10
  5. Step 5: Solve for x
    x = 575,685,777.10/27,656.96
  6. Step 6: Final answer
    x = 20,815.22

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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.