Home / 20,924.30-28,800.42-18,930.62

Finding the Fourth Proportional to 20,924.30, 28,800.42 and 18,930.62

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Solution

The fourth proportional to 20,924.30, 28,800.42 and 18,930.62 is: 26,056.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.30 : 28,800.42 = 18,930.62 : x
  2. Step 2: Convert to fraction form
    20,924.30/28,800.42 = 18,930.62/x
  3. Step 3: Cross multiply
    20,924.30x = 28,800.42 × 18,930.62
  4. Step 4: Simplify right side
    20,924.30x = 545,209,806.86
  5. Step 5: Solve for x
    x = 545,209,806.86/20,924.30
  6. Step 6: Final answer
    x = 26,056.30

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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.