Home / 22,638.20-31,240.49-12,566.39

Finding the Fourth Proportional to 22,638.20, 31,240.49 and 12,566.39

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Solution

The fourth proportional to 22,638.20, 31,240.49 and 12,566.39 is: 17,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,638.20 : 31,240.49 = 12,566.39 : x
  2. Step 2: Convert to fraction form
    22,638.20/31,240.49 = 12,566.39/x
  3. Step 3: Cross multiply
    22,638.20x = 31,240.49 × 12,566.39
  4. Step 4: Simplify right side
    22,638.20x = 392,580,137.82
  5. Step 5: Solve for x
    x = 392,580,137.82/22,638.20
  6. Step 6: Final answer
    x = 17,341.49

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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.