Home / 28,536.28-39,381.42-15,960.04

Finding the Fourth Proportional to 28,536.28, 39,381.42 and 15,960.04

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Solution

The fourth proportional to 28,536.28, 39,381.42 and 15,960.04 is: 22,025.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,536.28 : 39,381.42 = 15,960.04 : x
  2. Step 2: Convert to fraction form
    28,536.28/39,381.42 = 15,960.04/x
  3. Step 3: Cross multiply
    28,536.28x = 39,381.42 × 15,960.04
  4. Step 4: Simplify right side
    28,536.28x = 628,529,038.46
  5. Step 5: Solve for x
    x = 628,529,038.46/28,536.28
  6. Step 6: Final answer
    x = 22,025.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.