Home / 40,269.88-55,553.20-28,339.80

Finding the Fourth Proportional to 40,269.88, 55,553.20 and 28,339.80

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Solution

The fourth proportional to 40,269.88, 55,553.20 and 28,339.80 is: 39,095.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,269.88 : 55,553.20 = 28,339.80 : x
  2. Step 2: Convert to fraction form
    40,269.88/55,553.20 = 28,339.80/x
  3. Step 3: Cross multiply
    40,269.88x = 55,553.20 × 28,339.80
  4. Step 4: Simplify right side
    40,269.88x = 1,574,366,577.36
  5. Step 5: Solve for x
    x = 1,574,366,577.36/40,269.88
  6. Step 6: Final answer
    x = 39,095.39

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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.