Home / 20,302.39-30,410.38-11,532.79

Finding the Fourth Proportional to 20,302.39, 30,410.38 and 11,532.79

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Solution

The fourth proportional to 20,302.39, 30,410.38 and 11,532.79 is: 17,274.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.39 : 30,410.38 = 11,532.79 : x
  2. Step 2: Convert to fraction form
    20,302.39/30,410.38 = 11,532.79/x
  3. Step 3: Cross multiply
    20,302.39x = 30,410.38 × 11,532.79
  4. Step 4: Simplify right side
    20,302.39x = 350,716,526.36
  5. Step 5: Solve for x
    x = 350,716,526.36/20,302.39
  6. Step 6: Final answer
    x = 17,274.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.