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Finding the Fourth Proportional to 30,510.81, 45,713.84 and 27,429.30

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Solution

The fourth proportional to 30,510.81, 45,713.84 and 27,429.30 is: 41,096.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,510.81 : 45,713.84 = 27,429.30 : x
  2. Step 2: Convert to fraction form
    30,510.81/45,713.84 = 27,429.30/x
  3. Step 3: Cross multiply
    30,510.81x = 45,713.84 × 27,429.30
  4. Step 4: Simplify right side
    30,510.81x = 1,253,898,494.37
  5. Step 5: Solve for x
    x = 1,253,898,494.37/30,510.81
  6. Step 6: Final answer
    x = 41,096.86

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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.