Home / 20,590.74-28,374.84-16,823.70

Finding the Fourth Proportional to 20,590.74, 28,374.84 and 16,823.70

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Solution

The fourth proportional to 20,590.74, 28,374.84 and 16,823.70 is: 23,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.74 : 28,374.84 = 16,823.70 : x
  2. Step 2: Convert to fraction form
    20,590.74/28,374.84 = 16,823.70/x
  3. Step 3: Cross multiply
    20,590.74x = 28,374.84 × 16,823.70
  4. Step 4: Simplify right side
    20,590.74x = 477,369,795.71
  5. Step 5: Solve for x
    x = 477,369,795.71/20,590.74
  6. Step 6: Final answer
    x = 23,183.71

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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.