Home / 28,575.42-39,430.60-16,636.83

Finding the Fourth Proportional to 28,575.42, 39,430.60 and 16,636.83

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Solution

The fourth proportional to 28,575.42, 39,430.60 and 16,636.83 is: 22,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575.42 : 39,430.60 = 16,636.83 : x
  2. Step 2: Convert to fraction form
    28,575.42/39,430.60 = 16,636.83/x
  3. Step 3: Cross multiply
    28,575.42x = 39,430.60 × 16,636.83
  4. Step 4: Simplify right side
    28,575.42x = 656,000,189.00
  5. Step 5: Solve for x
    x = 656,000,189.00/28,575.42
  6. Step 6: Final answer
    x = 22,956.80

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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.