Home / 20,370.99-28,069.83-16,376.07

Finding the Fourth Proportional to 20,370.99, 28,069.83 and 16,376.07

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Solution

The fourth proportional to 20,370.99, 28,069.83 and 16,376.07 is: 22,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.99 : 28,069.83 = 16,376.07 : x
  2. Step 2: Convert to fraction form
    20,370.99/28,069.83 = 16,376.07/x
  3. Step 3: Cross multiply
    20,370.99x = 28,069.83 × 16,376.07
  4. Step 4: Simplify right side
    20,370.99x = 459,673,500.97
  5. Step 5: Solve for x
    x = 459,673,500.97/20,370.99
  6. Step 6: Final answer
    x = 22,565.10

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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.