Home / 30,474.89-45,581.11-27,121.49

Finding the Fourth Proportional to 30,474.89, 45,581.11 and 27,121.49

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Solution

The fourth proportional to 30,474.89, 45,581.11 and 27,121.49 is: 40,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,474.89 : 45,581.11 = 27,121.49 : x
  2. Step 2: Convert to fraction form
    30,474.89/45,581.11 = 27,121.49/x
  3. Step 3: Cross multiply
    30,474.89x = 45,581.11 × 27,121.49
  4. Step 4: Simplify right side
    30,474.89x = 1,236,227,323.34
  5. Step 5: Solve for x
    x = 1,236,227,323.34/30,474.89
  6. Step 6: Final answer
    x = 40,565.45

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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.