Home / 28,415.99-39,216.20-16,479.22

Finding the Fourth Proportional to 28,415.99, 39,216.20 and 16,479.22

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Solution

The fourth proportional to 28,415.99, 39,216.20 and 16,479.22 is: 22,742.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.99 : 39,216.20 = 16,479.22 : x
  2. Step 2: Convert to fraction form
    28,415.99/39,216.20 = 16,479.22/x
  3. Step 3: Cross multiply
    28,415.99x = 39,216.20 × 16,479.22
  4. Step 4: Simplify right side
    28,415.99x = 646,252,387.36
  5. Step 5: Solve for x
    x = 646,252,387.36/28,415.99
  6. Step 6: Final answer
    x = 22,742.56

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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.