Home / 45,428.91-62,688.76-28,432.44

Finding the Fourth Proportional to 45,428.91, 62,688.76 and 28,432.44

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Solution

The fourth proportional to 45,428.91, 62,688.76 and 28,432.44 is: 39,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,428.91 : 62,688.76 = 28,432.44 : x
  2. Step 2: Convert to fraction form
    45,428.91/62,688.76 = 28,432.44/x
  3. Step 3: Cross multiply
    45,428.91x = 62,688.76 × 28,432.44
  4. Step 4: Simplify right side
    45,428.91x = 1,782,394,407.37
  5. Step 5: Solve for x
    x = 1,782,394,407.37/45,428.91
  6. Step 6: Final answer
    x = 39,234.80

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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.