Home / 31,776.60-47,668.95-12,060.80

Finding the Fourth Proportional to 31,776.60, 47,668.95 and 12,060.80

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Solution

The fourth proportional to 31,776.60, 47,668.95 and 12,060.80 is: 18,092.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,776.60 : 47,668.95 = 12,060.80 : x
  2. Step 2: Convert to fraction form
    31,776.60/47,668.95 = 12,060.80/x
  3. Step 3: Cross multiply
    31,776.60x = 47,668.95 × 12,060.80
  4. Step 4: Simplify right side
    31,776.60x = 574,925,433.82
  5. Step 5: Solve for x
    x = 574,925,433.82/31,776.60
  6. Step 6: Final answer
    x = 18,092.73

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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.