Home / 20,145.06-30,192.03-11,384.88

Finding the Fourth Proportional to 20,145.06, 30,192.03 and 11,384.88

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Solution

The fourth proportional to 20,145.06, 30,192.03 and 11,384.88 is: 17,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.06 : 30,192.03 = 11,384.88 : x
  2. Step 2: Convert to fraction form
    20,145.06/30,192.03 = 11,384.88/x
  3. Step 3: Cross multiply
    20,145.06x = 30,192.03 × 11,384.88
  4. Step 4: Simplify right side
    20,145.06x = 343,732,638.51
  5. Step 5: Solve for x
    x = 343,732,638.51/20,145.06
  6. Step 6: Final answer
    x = 17,062.87

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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.