Home / 28,476.40-42,719.04-13,682.56

Finding the Fourth Proportional to 28,476.40, 42,719.04 and 13,682.56

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Solution

The fourth proportional to 28,476.40, 42,719.04 and 13,682.56 is: 20,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476.40 : 42,719.04 = 13,682.56 : x
  2. Step 2: Convert to fraction form
    28,476.40/42,719.04 = 13,682.56/x
  3. Step 3: Cross multiply
    28,476.40x = 42,719.04 × 13,682.56
  4. Step 4: Simplify right side
    28,476.40x = 584,505,827.94
  5. Step 5: Solve for x
    x = 584,505,827.94/28,476.40
  6. Step 6: Final answer
    x = 20,525.97

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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.