Home / 18,434.79-27,517.60-15,819.10

Finding the Fourth Proportional to 18,434.79, 27,517.60 and 15,819.10

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Solution

The fourth proportional to 18,434.79, 27,517.60 and 15,819.10 is: 23,613.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434.79 : 27,517.60 = 15,819.10 : x
  2. Step 2: Convert to fraction form
    18,434.79/27,517.60 = 15,819.10/x
  3. Step 3: Cross multiply
    18,434.79x = 27,517.60 × 15,819.10
  4. Step 4: Simplify right side
    18,434.79x = 435,303,587.06
  5. Step 5: Solve for x
    x = 435,303,587.06/18,434.79
  6. Step 6: Final answer
    x = 23,613.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.