Home / 28,326.24-42,498-20,446.56

Finding the Fourth Proportional to 28,326.24, 42,498 and 20,446.56

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Solution

The fourth proportional to 28,326.24, 42,498 and 20,446.56 is: 30,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.24 : 42,498 = 20,446.56 : x
  2. Step 2: Convert to fraction form
    28,326.24/42,498 = 20,446.56/x
  3. Step 3: Cross multiply
    28,326.24x = 42,498 × 20,446.56
  4. Step 4: Simplify right side
    28,326.24x = 868,937,906.88
  5. Step 5: Solve for x
    x = 868,937,906.88/28,326.24
  6. Step 6: Final answer
    x = 30,676.08

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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.