Home / 20,369.95-30,571.43-10,512.04

Finding the Fourth Proportional to 20,369.95, 30,571.43 and 10,512.04

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Solution

The fourth proportional to 20,369.95, 30,571.43 and 10,512.04 is: 15,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369.95 : 30,571.43 = 10,512.04 : x
  2. Step 2: Convert to fraction form
    20,369.95/30,571.43 = 10,512.04/x
  3. Step 3: Cross multiply
    20,369.95x = 30,571.43 × 10,512.04
  4. Step 4: Simplify right side
    20,369.95x = 321,368,095.02
  5. Step 5: Solve for x
    x = 321,368,095.02/20,369.95
  6. Step 6: Final answer
    x = 15,776.58

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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.