Home / 20,924-28,849.52-16,433.76

Finding the Fourth Proportional to 20,924, 28,849.52 and 16,433.76

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Solution

The fourth proportional to 20,924, 28,849.52 and 16,433.76 is: 22,658.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924 : 28,849.52 = 16,433.76 : x
  2. Step 2: Convert to fraction form
    20,924/28,849.52 = 16,433.76/x
  3. Step 3: Cross multiply
    20,924x = 28,849.52 × 16,433.76
  4. Step 4: Simplify right side
    20,924x = 474,106,087.80
  5. Step 5: Solve for x
    x = 474,106,087.80/20,924
  6. Step 6: Final answer
    x = 22,658.48

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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.