Home / 31,453.15-47,197.95-15,871.99

Finding the Fourth Proportional to 31,453.15, 47,197.95 and 15,871.99

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Solution

The fourth proportional to 31,453.15, 47,197.95 and 15,871.99 is: 23,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,453.15 : 47,197.95 = 15,871.99 : x
  2. Step 2: Convert to fraction form
    31,453.15/47,197.95 = 15,871.99/x
  3. Step 3: Cross multiply
    31,453.15x = 47,197.95 × 15,871.99
  4. Step 4: Simplify right side
    31,453.15x = 749,125,390.42
  5. Step 5: Solve for x
    x = 749,125,390.42/31,453.15
  6. Step 6: Final answer
    x = 23,817.18

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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.