Home / 20,383.47-30,633.53-10,002.51

Finding the Fourth Proportional to 20,383.47, 30,633.53 and 10,002.51

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Solution

The fourth proportional to 20,383.47, 30,633.53 and 10,002.51 is: 15,032.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.47 : 30,633.53 = 10,002.51 : x
  2. Step 2: Convert to fraction form
    20,383.47/30,633.53 = 10,002.51/x
  3. Step 3: Cross multiply
    20,383.47x = 30,633.53 × 10,002.51
  4. Step 4: Simplify right side
    20,383.47x = 306,412,311.29
  5. Step 5: Solve for x
    x = 306,412,311.29/20,383.47
  6. Step 6: Final answer
    x = 15,032.39

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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.