Home / 20,929.88-28,855.02-17,932.76

Finding the Fourth Proportional to 20,929.88, 28,855.02 and 17,932.76

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Solution

The fourth proportional to 20,929.88, 28,855.02 and 17,932.76 is: 24,723.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.88 : 28,855.02 = 17,932.76 : x
  2. Step 2: Convert to fraction form
    20,929.88/28,855.02 = 17,932.76/x
  3. Step 3: Cross multiply
    20,929.88x = 28,855.02 × 17,932.76
  4. Step 4: Simplify right side
    20,929.88x = 517,450,148.46
  5. Step 5: Solve for x
    x = 517,450,148.46/20,929.88
  6. Step 6: Final answer
    x = 24,723.03

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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.