Home / 19,212.30-28,818.45-16,908.30

Finding the Fourth Proportional to 19,212.30, 28,818.45 and 16,908.30

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Solution

The fourth proportional to 19,212.30, 28,818.45 and 16,908.30 is: 25,362.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.30 : 28,818.45 = 16,908.30 : x
  2. Step 2: Convert to fraction form
    19,212.30/28,818.45 = 16,908.30/x
  3. Step 3: Cross multiply
    19,212.30x = 28,818.45 × 16,908.30
  4. Step 4: Simplify right side
    19,212.30x = 487,270,998.14
  5. Step 5: Solve for x
    x = 487,270,998.14/19,212.30
  6. Step 6: Final answer
    x = 25,362.45

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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.