Home / 47,984.70-71,981.46-12,445.95

Finding the Fourth Proportional to 47,984.70, 71,981.46 and 12,445.95

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Solution

The fourth proportional to 47,984.70, 71,981.46 and 12,445.95 is: 18,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,984.70 : 71,981.46 = 12,445.95 : x
  2. Step 2: Convert to fraction form
    47,984.70/71,981.46 = 12,445.95/x
  3. Step 3: Cross multiply
    47,984.70x = 71,981.46 × 12,445.95
  4. Step 4: Simplify right side
    47,984.70x = 895,877,922.02
  5. Step 5: Solve for x
    x = 895,877,922.02/47,984.70
  6. Step 6: Final answer
    x = 18,670.07

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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.