Home / 20,559.87-28,342.92-13,473.99

Finding the Fourth Proportional to 20,559.87, 28,342.92 and 13,473.99

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Solution

The fourth proportional to 20,559.87, 28,342.92 and 13,473.99 is: 18,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.87 : 28,342.92 = 13,473.99 : x
  2. Step 2: Convert to fraction form
    20,559.87/28,342.92 = 13,473.99/x
  3. Step 3: Cross multiply
    20,559.87x = 28,342.92 × 13,473.99
  4. Step 4: Simplify right side
    20,559.87x = 381,892,220.65
  5. Step 5: Solve for x
    x = 381,892,220.65/20,559.87
  6. Step 6: Final answer
    x = 18,574.64

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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.