Home / 22,616.35-31,211.34-13,662.07

Finding the Fourth Proportional to 22,616.35, 31,211.34 and 13,662.07

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Solution

The fourth proportional to 22,616.35, 31,211.34 and 13,662.07 is: 18,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,616.35 : 31,211.34 = 13,662.07 : x
  2. Step 2: Convert to fraction form
    22,616.35/31,211.34 = 13,662.07/x
  3. Step 3: Cross multiply
    22,616.35x = 31,211.34 × 13,662.07
  4. Step 4: Simplify right side
    22,616.35x = 426,411,511.87
  5. Step 5: Solve for x
    x = 426,411,511.87/22,616.35
  6. Step 6: Final answer
    x = 18,854.13

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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.