Home / 31,916.88-44,043.42-18,487.20

Finding the Fourth Proportional to 31,916.88, 44,043.42 and 18,487.20

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Solution

The fourth proportional to 31,916.88, 44,043.42 and 18,487.20 is: 25,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,916.88 : 44,043.42 = 18,487.20 : x
  2. Step 2: Convert to fraction form
    31,916.88/44,043.42 = 18,487.20/x
  3. Step 3: Cross multiply
    31,916.88x = 44,043.42 × 18,487.20
  4. Step 4: Simplify right side
    31,916.88x = 814,239,514.22
  5. Step 5: Solve for x
    x = 814,239,514.22/31,916.88
  6. Step 6: Final answer
    x = 25,511.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.