Home / 28,125.60-38,815.68-16,192.80

Finding the Fourth Proportional to 28,125.60, 38,815.68 and 16,192.80

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Solution

The fourth proportional to 28,125.60, 38,815.68 and 16,192.80 is: 22,347.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.60 : 38,815.68 = 16,192.80 : x
  2. Step 2: Convert to fraction form
    28,125.60/38,815.68 = 16,192.80/x
  3. Step 3: Cross multiply
    28,125.60x = 38,815.68 × 16,192.80
  4. Step 4: Simplify right side
    28,125.60x = 628,534,543.10
  5. Step 5: Solve for x
    x = 628,534,543.10/28,125.60
  6. Step 6: Final answer
    x = 22,347.42

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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.