Home / 30,072.75-45,125.64-15,282.95

Finding the Fourth Proportional to 30,072.75, 45,125.64 and 15,282.95

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Solution

The fourth proportional to 30,072.75, 45,125.64 and 15,282.95 is: 22,932.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072.75 : 45,125.64 = 15,282.95 : x
  2. Step 2: Convert to fraction form
    30,072.75/45,125.64 = 15,282.95/x
  3. Step 3: Cross multiply
    30,072.75x = 45,125.64 × 15,282.95
  4. Step 4: Simplify right side
    30,072.75x = 689,652,674.21
  5. Step 5: Solve for x
    x = 689,652,674.21/30,072.75
  6. Step 6: Final answer
    x = 22,932.81

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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.