Home / 20,942.91-28,916.51-14,558.85

Finding the Fourth Proportional to 20,942.91, 28,916.51 and 14,558.85

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Solution

The fourth proportional to 20,942.91, 28,916.51 and 14,558.85 is: 20,101.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,942.91 : 28,916.51 = 14,558.85 : x
  2. Step 2: Convert to fraction form
    20,942.91/28,916.51 = 14,558.85/x
  3. Step 3: Cross multiply
    20,942.91x = 28,916.51 × 14,558.85
  4. Step 4: Simplify right side
    20,942.91x = 420,991,058.82
  5. Step 5: Solve for x
    x = 420,991,058.82/20,942.91
  6. Step 6: Final answer
    x = 20,101.84

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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.