Home / 31,916.34-47,896.29-11,139.84

Finding the Fourth Proportional to 31,916.34, 47,896.29 and 11,139.84

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Solution

The fourth proportional to 31,916.34, 47,896.29 and 11,139.84 is: 16,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,916.34 : 47,896.29 = 11,139.84 : x
  2. Step 2: Convert to fraction form
    31,916.34/47,896.29 = 11,139.84/x
  3. Step 3: Cross multiply
    31,916.34x = 47,896.29 × 11,139.84
  4. Step 4: Simplify right side
    31,916.34x = 533,557,007.19
  5. Step 5: Solve for x
    x = 533,557,007.19/31,916.34
  6. Step 6: Final answer
    x = 16,717.36

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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.