Home / 47,479.02-71,222.60-12,418.62

Finding the Fourth Proportional to 47,479.02, 71,222.60 and 12,418.62

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Solution

The fourth proportional to 47,479.02, 71,222.60 and 12,418.62 is: 18,628.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,479.02 : 71,222.60 = 12,418.62 : x
  2. Step 2: Convert to fraction form
    47,479.02/71,222.60 = 12,418.62/x
  3. Step 3: Cross multiply
    47,479.02x = 71,222.60 × 12,418.62
  4. Step 4: Simplify right side
    47,479.02x = 884,486,404.81
  5. Step 5: Solve for x
    x = 884,486,404.81/47,479.02
  6. Step 6: Final answer
    x = 18,628.99

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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.