Home / 22,609.35-31,201.68-13,655.07

Finding the Fourth Proportional to 22,609.35, 31,201.68 and 13,655.07

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Solution

The fourth proportional to 22,609.35, 31,201.68 and 13,655.07 is: 18,844.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,609.35 : 31,201.68 = 13,655.07 : x
  2. Step 2: Convert to fraction form
    22,609.35/31,201.68 = 13,655.07/x
  3. Step 3: Cross multiply
    22,609.35x = 31,201.68 × 13,655.07
  4. Step 4: Simplify right side
    22,609.35x = 426,061,124.52
  5. Step 5: Solve for x
    x = 426,061,124.52/22,609.35
  6. Step 6: Final answer
    x = 18,844.47

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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.