Home / 47,430.74-71,146.11-12,370.09

Finding the Fourth Proportional to 47,430.74, 71,146.11 and 12,370.09

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Solution

The fourth proportional to 47,430.74, 71,146.11 and 12,370.09 is: 18,555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,430.74 : 71,146.11 = 12,370.09 : x
  2. Step 2: Convert to fraction form
    47,430.74/71,146.11 = 12,370.09/x
  3. Step 3: Cross multiply
    47,430.74x = 71,146.11 × 12,370.09
  4. Step 4: Simplify right side
    47,430.74x = 880,083,783.85
  5. Step 5: Solve for x
    x = 880,083,783.85/47,430.74
  6. Step 6: Final answer
    x = 18,555.14

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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.