Home / 47,430.88-71,147.60-12,369.76

Finding the Fourth Proportional to 47,430.88, 71,147.60 and 12,369.76

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Solution

The fourth proportional to 47,430.88, 71,147.60 and 12,369.76 is: 18,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,430.88 : 71,147.60 = 12,369.76 : x
  2. Step 2: Convert to fraction form
    47,430.88/71,147.60 = 12,369.76/x
  3. Step 3: Cross multiply
    47,430.88x = 71,147.60 × 12,369.76
  4. Step 4: Simplify right side
    47,430.88x = 880,078,736.58
  5. Step 5: Solve for x
    x = 880,078,736.58/47,430.88
  6. Step 6: Final answer
    x = 18,554.97

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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.