Home / 30,542.08-42,093.12-19,344.64

Finding the Fourth Proportional to 30,542.08, 42,093.12 and 19,344.64

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Solution

The fourth proportional to 30,542.08, 42,093.12 and 19,344.64 is: 26,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,542.08 : 42,093.12 = 19,344.64 : x
  2. Step 2: Convert to fraction form
    30,542.08/42,093.12 = 19,344.64/x
  3. Step 3: Cross multiply
    30,542.08x = 42,093.12 × 19,344.64
  4. Step 4: Simplify right side
    30,542.08x = 814,276,252.88
  5. Step 5: Solve for x
    x = 814,276,252.88/30,542.08
  6. Step 6: Final answer
    x = 26,660.80

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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.