Home / 19,013.28-28,476.72-13,447.68

Finding the Fourth Proportional to 19,013.28, 28,476.72 and 13,447.68

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Solution

The fourth proportional to 19,013.28, 28,476.72 and 13,447.68 is: 20,140.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,013.28 : 28,476.72 = 13,447.68 : x
  2. Step 2: Convert to fraction form
    19,013.28/28,476.72 = 13,447.68/x
  3. Step 3: Cross multiply
    19,013.28x = 28,476.72 × 13,447.68
  4. Step 4: Simplify right side
    19,013.28x = 382,945,818.01
  5. Step 5: Solve for x
    x = 382,945,818.01/19,013.28
  6. Step 6: Final answer
    x = 20,140.97

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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.