Home / 31,865.96-47,798.94-13,156.58

Finding the Fourth Proportional to 31,865.96, 47,798.94 and 13,156.58

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Solution

The fourth proportional to 31,865.96, 47,798.94 and 13,156.58 is: 19,734.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,865.96 : 47,798.94 = 13,156.58 : x
  2. Step 2: Convert to fraction form
    31,865.96/47,798.94 = 13,156.58/x
  3. Step 3: Cross multiply
    31,865.96x = 47,798.94 × 13,156.58
  4. Step 4: Simplify right side
    31,865.96x = 628,870,578.03
  5. Step 5: Solve for x
    x = 628,870,578.03/31,865.96
  6. Step 6: Final answer
    x = 19,734.87

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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.