Home / 31,806.55-47,716.71-12,085.48

Finding the Fourth Proportional to 31,806.55, 47,716.71 and 12,085.48

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Solution

The fourth proportional to 31,806.55, 47,716.71 and 12,085.48 is: 18,130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,806.55 : 47,716.71 = 12,085.48 : x
  2. Step 2: Convert to fraction form
    31,806.55/47,716.71 = 12,085.48/x
  3. Step 3: Cross multiply
    31,806.55x = 47,716.71 × 12,085.48
  4. Step 4: Simplify right side
    31,806.55x = 576,679,344.37
  5. Step 5: Solve for x
    x = 576,679,344.37/31,806.55
  6. Step 6: Final answer
    x = 18,130.84

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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.