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Finding the Fourth Proportional to 30,123.56, 44,866.90 and 28,542.44

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Solution

The fourth proportional to 30,123.56, 44,866.90 and 28,542.44 is: 42,511.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.56 : 44,866.90 = 28,542.44 : x
  2. Step 2: Convert to fraction form
    30,123.56/44,866.90 = 28,542.44/x
  3. Step 3: Cross multiply
    30,123.56x = 44,866.90 × 28,542.44
  4. Step 4: Simplify right side
    30,123.56x = 1,280,610,801.24
  5. Step 5: Solve for x
    x = 1,280,610,801.24/30,123.56
  6. Step 6: Final answer
    x = 42,511.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.