Home / 28,416.24-39,216.55-16,479.47

Finding the Fourth Proportional to 28,416.24, 39,216.55 and 16,479.47

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Solution

The fourth proportional to 28,416.24, 39,216.55 and 16,479.47 is: 22,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.24 : 39,216.55 = 16,479.47 : x
  2. Step 2: Convert to fraction form
    28,416.24/39,216.55 = 16,479.47/x
  3. Step 3: Cross multiply
    28,416.24x = 39,216.55 × 16,479.47
  4. Step 4: Simplify right side
    28,416.24x = 646,267,959.23
  5. Step 5: Solve for x
    x = 646,267,959.23/28,416.24
  6. Step 6: Final answer
    x = 22,742.91

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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.