Home / 31,602.11-47,391.53-12,871.97

Finding the Fourth Proportional to 31,602.11, 47,391.53 and 12,871.97

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Solution

The fourth proportional to 31,602.11, 47,391.53 and 12,871.97 is: 19,303.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,602.11 : 47,391.53 = 12,871.97 : x
  2. Step 2: Convert to fraction form
    31,602.11/47,391.53 = 12,871.97/x
  3. Step 3: Cross multiply
    31,602.11x = 47,391.53 × 12,871.97
  4. Step 4: Simplify right side
    31,602.11x = 610,022,228.81
  5. Step 5: Solve for x
    x = 610,022,228.81/31,602.11
  6. Step 6: Final answer
    x = 19,303.22

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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.