Home / 20,545.06-28,366.05-13,483.48

Finding the Fourth Proportional to 20,545.06, 28,366.05 and 13,483.48

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Solution

The fourth proportional to 20,545.06, 28,366.05 and 13,483.48 is: 18,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.06 : 28,366.05 = 13,483.48 : x
  2. Step 2: Convert to fraction form
    20,545.06/28,366.05 = 13,483.48/x
  3. Step 3: Cross multiply
    20,545.06x = 28,366.05 × 13,483.48
  4. Step 4: Simplify right side
    20,545.06x = 382,473,067.85
  5. Step 5: Solve for x
    x = 382,473,067.85/20,545.06
  6. Step 6: Final answer
    x = 18,616.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.