Home / 20,573.92-28,421.04-16,376.80

Finding the Fourth Proportional to 20,573.92, 28,421.04 and 16,376.80

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Solution

The fourth proportional to 20,573.92, 28,421.04 and 16,376.80 is: 22,623.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.92 : 28,421.04 = 16,376.80 : x
  2. Step 2: Convert to fraction form
    20,573.92/28,421.04 = 16,376.80/x
  3. Step 3: Cross multiply
    20,573.92x = 28,421.04 × 16,376.80
  4. Step 4: Simplify right side
    20,573.92x = 465,445,687.87
  5. Step 5: Solve for x
    x = 465,445,687.87/20,573.92
  6. Step 6: Final answer
    x = 22,623.09

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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.