Home / 28,153.25-42,234.73-8,432.99

Finding the Fourth Proportional to 28,153.25, 42,234.73 and 8,432.99

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Solution

The fourth proportional to 28,153.25, 42,234.73 and 8,432.99 is: 12,650.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,153.25 : 42,234.73 = 8,432.99 : x
  2. Step 2: Convert to fraction form
    28,153.25/42,234.73 = 8,432.99/x
  3. Step 3: Cross multiply
    28,153.25x = 42,234.73 × 8,432.99
  4. Step 4: Simplify right side
    28,153.25x = 356,164,823.49
  5. Step 5: Solve for x
    x = 356,164,823.49/28,153.25
  6. Step 6: Final answer
    x = 12,650.93

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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.