Home / 28,322.60-39,080.85-16,383.63

Finding the Fourth Proportional to 28,322.60, 39,080.85 and 16,383.63

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Solution

The fourth proportional to 28,322.60, 39,080.85 and 16,383.63 is: 22,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.60 : 39,080.85 = 16,383.63 : x
  2. Step 2: Convert to fraction form
    28,322.60/39,080.85 = 16,383.63/x
  3. Step 3: Cross multiply
    28,322.60x = 39,080.85 × 16,383.63
  4. Step 4: Simplify right side
    28,322.60x = 640,286,271.60
  5. Step 5: Solve for x
    x = 640,286,271.60/28,322.60
  6. Step 6: Final answer
    x = 22,606.91

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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.