Home / 30,313.84-45,471.98-15,518.78

Finding the Fourth Proportional to 30,313.84, 45,471.98 and 15,518.78

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Solution

The fourth proportional to 30,313.84, 45,471.98 and 15,518.78 is: 23,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,313.84 : 45,471.98 = 15,518.78 : x
  2. Step 2: Convert to fraction form
    30,313.84/45,471.98 = 15,518.78/x
  3. Step 3: Cross multiply
    30,313.84x = 45,471.98 × 15,518.78
  4. Step 4: Simplify right side
    30,313.84x = 705,669,653.78
  5. Step 5: Solve for x
    x = 705,669,653.78/30,313.84
  6. Step 6: Final answer
    x = 23,278.79

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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.