Home / 28,416.64-39,212.20-16,480.76

Finding the Fourth Proportional to 28,416.64, 39,212.20 and 16,480.76

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Solution

The fourth proportional to 28,416.64, 39,212.20 and 16,480.76 is: 22,741.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.64 : 39,212.20 = 16,480.76 : x
  2. Step 2: Convert to fraction form
    28,416.64/39,212.20 = 16,480.76/x
  3. Step 3: Cross multiply
    28,416.64x = 39,212.20 × 16,480.76
  4. Step 4: Simplify right side
    28,416.64x = 646,246,857.27
  5. Step 5: Solve for x
    x = 646,246,857.27/28,416.64
  6. Step 6: Final answer
    x = 22,741.85

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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.