Home / 20,965.84-31,418.68-16,263.84

Finding the Fourth Proportional to 20,965.84, 31,418.68 and 16,263.84

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Solution

The fourth proportional to 20,965.84, 31,418.68 and 16,263.84 is: 24,372.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,965.84 : 31,418.68 = 16,263.84 : x
  2. Step 2: Convert to fraction form
    20,965.84/31,418.68 = 16,263.84/x
  3. Step 3: Cross multiply
    20,965.84x = 31,418.68 × 16,263.84
  4. Step 4: Simplify right side
    20,965.84x = 510,988,384.53
  5. Step 5: Solve for x
    x = 510,988,384.53/20,965.84
  6. Step 6: Final answer
    x = 24,372.43

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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.