Home / 20,064.16-30,079.81-7,577.09

Finding the Fourth Proportional to 20,064.16, 30,079.81 and 7,577.09

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Solution

The fourth proportional to 20,064.16, 30,079.81 and 7,577.09 is: 11,359.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.16 : 30,079.81 = 7,577.09 : x
  2. Step 2: Convert to fraction form
    20,064.16/30,079.81 = 7,577.09/x
  3. Step 3: Cross multiply
    20,064.16x = 30,079.81 × 7,577.09
  4. Step 4: Simplify right side
    20,064.16x = 227,917,389.67
  5. Step 5: Solve for x
    x = 227,917,389.67/20,064.16
  6. Step 6: Final answer
    x = 11,359.43

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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.