Home / 28,077.84-42,123.24-14,942.88

Finding the Fourth Proportional to 28,077.84, 42,123.24 and 14,942.88

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Solution

The fourth proportional to 28,077.84, 42,123.24 and 14,942.88 is: 22,417.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.84 : 42,123.24 = 14,942.88 : x
  2. Step 2: Convert to fraction form
    28,077.84/42,123.24 = 14,942.88/x
  3. Step 3: Cross multiply
    28,077.84x = 42,123.24 × 14,942.88
  4. Step 4: Simplify right side
    28,077.84x = 629,442,520.53
  5. Step 5: Solve for x
    x = 629,442,520.53/28,077.84
  6. Step 6: Final answer
    x = 22,417.77

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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.