Home / 31,465.09-47,197.76-12,745.47

Finding the Fourth Proportional to 31,465.09, 47,197.76 and 12,745.47

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Solution

The fourth proportional to 31,465.09, 47,197.76 and 12,745.47 is: 19,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,465.09 : 47,197.76 = 12,745.47 : x
  2. Step 2: Convert to fraction form
    31,465.09/47,197.76 = 12,745.47/x
  3. Step 3: Cross multiply
    31,465.09x = 47,197.76 × 12,745.47
  4. Step 4: Simplify right side
    31,465.09x = 601,557,747.41
  5. Step 5: Solve for x
    x = 601,557,747.41/31,465.09
  6. Step 6: Final answer
    x = 19,118.26

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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.