Home / 19,308.80-28,913.52-13,377.26

Finding the Fourth Proportional to 19,308.80, 28,913.52 and 13,377.26

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Solution

The fourth proportional to 19,308.80, 28,913.52 and 13,377.26 is: 20,031.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,308.80 : 28,913.52 = 13,377.26 : x
  2. Step 2: Convert to fraction form
    19,308.80/28,913.52 = 13,377.26/x
  3. Step 3: Cross multiply
    19,308.80x = 28,913.52 × 13,377.26
  4. Step 4: Simplify right side
    19,308.80x = 386,783,674.56
  5. Step 5: Solve for x
    x = 386,783,674.56/19,308.80
  6. Step 6: Final answer
    x = 20,031.47

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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.