Home / 28,145.35-42,204.39-11,498.77

Finding the Fourth Proportional to 28,145.35, 42,204.39 and 11,498.77

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Solution

The fourth proportional to 28,145.35, 42,204.39 and 11,498.77 is: 17,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.35 : 42,204.39 = 11,498.77 : x
  2. Step 2: Convert to fraction form
    28,145.35/42,204.39 = 11,498.77/x
  3. Step 3: Cross multiply
    28,145.35x = 42,204.39 × 11,498.77
  4. Step 4: Simplify right side
    28,145.35x = 485,298,573.60
  5. Step 5: Solve for x
    x = 485,298,573.60/28,145.35
  6. Step 6: Final answer
    x = 17,242.58

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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.