Home / 19,319.04-28,920.24-13,676.58

Finding the Fourth Proportional to 19,319.04, 28,920.24 and 13,676.58

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Solution

The fourth proportional to 19,319.04, 28,920.24 and 13,676.58 is: 20,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.04 : 28,920.24 = 13,676.58 : x
  2. Step 2: Convert to fraction form
    19,319.04/28,920.24 = 13,676.58/x
  3. Step 3: Cross multiply
    19,319.04x = 28,920.24 × 13,676.58
  4. Step 4: Simplify right side
    19,319.04x = 395,529,975.98
  5. Step 5: Solve for x
    x = 395,529,975.98/19,319.04
  6. Step 6: Final answer
    x = 20,473.58

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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.