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Finding the Fourth Proportional to 19,274.97, 28,898.40 and 13,019.46

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Solution

The fourth proportional to 19,274.97, 28,898.40 and 13,019.46 is: 19,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.97 : 28,898.40 = 13,019.46 : x
  2. Step 2: Convert to fraction form
    19,274.97/28,898.40 = 13,019.46/x
  3. Step 3: Cross multiply
    19,274.97x = 28,898.40 × 13,019.46
  4. Step 4: Simplify right side
    19,274.97x = 376,241,562.86
  5. Step 5: Solve for x
    x = 376,241,562.86/19,274.97
  6. Step 6: Final answer
    x = 19,519.70

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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.