Home / 31,546.81-47,388.93-19,072.71

Finding the Fourth Proportional to 31,546.81, 47,388.93 and 19,072.71

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Solution

The fourth proportional to 31,546.81, 47,388.93 and 19,072.71 is: 28,650.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,546.81 : 47,388.93 = 19,072.71 : x
  2. Step 2: Convert to fraction form
    31,546.81/47,388.93 = 19,072.71/x
  3. Step 3: Cross multiply
    31,546.81x = 47,388.93 × 19,072.71
  4. Step 4: Simplify right side
    31,546.81x = 903,835,319.10
  5. Step 5: Solve for x
    x = 903,835,319.10/31,546.81
  6. Step 6: Final answer
    x = 28,650.61

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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.