Home / 26,613.30-36,728.04-15,286.40

Finding the Fourth Proportional to 26,613.30, 36,728.04 and 15,286.40

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Solution

The fourth proportional to 26,613.30, 36,728.04 and 15,286.40 is: 21,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,613.30 : 36,728.04 = 15,286.40 : x
  2. Step 2: Convert to fraction form
    26,613.30/36,728.04 = 15,286.40/x
  3. Step 3: Cross multiply
    26,613.30x = 36,728.04 × 15,286.40
  4. Step 4: Simplify right side
    26,613.30x = 561,439,510.66
  5. Step 5: Solve for x
    x = 561,439,510.66/26,613.30
  6. Step 6: Final answer
    x = 21,096.20

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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.