Home / 20,205.16-30,345.42-16,515.22

Finding the Fourth Proportional to 20,205.16, 30,345.42 and 16,515.22

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Solution

The fourth proportional to 20,205.16, 30,345.42 and 16,515.22 is: 24,803.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.16 : 30,345.42 = 16,515.22 : x
  2. Step 2: Convert to fraction form
    20,205.16/30,345.42 = 16,515.22/x
  3. Step 3: Cross multiply
    20,205.16x = 30,345.42 × 16,515.22
  4. Step 4: Simplify right side
    20,205.16x = 501,161,287.29
  5. Step 5: Solve for x
    x = 501,161,287.29/20,205.16
  6. Step 6: Final answer
    x = 24,803.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.