Home / 20,384.47-30,635.03-10,003.51

Finding the Fourth Proportional to 20,384.47, 30,635.03 and 10,003.51

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Solution

The fourth proportional to 20,384.47, 30,635.03 and 10,003.51 is: 15,033.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.47 : 30,635.03 = 10,003.51 : x
  2. Step 2: Convert to fraction form
    20,384.47/30,635.03 = 10,003.51/x
  3. Step 3: Cross multiply
    20,384.47x = 30,635.03 × 10,003.51
  4. Step 4: Simplify right side
    20,384.47x = 306,457,828.96
  5. Step 5: Solve for x
    x = 306,457,828.96/20,384.47
  6. Step 6: Final answer
    x = 15,033.89

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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.