Home / 31,438.29-47,160.51-11,453.21

Finding the Fourth Proportional to 31,438.29, 47,160.51 and 11,453.21

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Solution

The fourth proportional to 31,438.29, 47,160.51 and 11,453.21 is: 17,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,438.29 : 47,160.51 = 11,453.21 : x
  2. Step 2: Convert to fraction form
    31,438.29/47,160.51 = 11,453.21/x
  3. Step 3: Cross multiply
    31,438.29x = 47,160.51 × 11,453.21
  4. Step 4: Simplify right side
    31,438.29x = 540,139,224.74
  5. Step 5: Solve for x
    x = 540,139,224.74/31,438.29
  6. Step 6: Final answer
    x = 17,180.94

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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.