Home / 22,627.67-31,115.43-19,638.30

Finding the Fourth Proportional to 22,627.67, 31,115.43 and 19,638.30

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Solution

The fourth proportional to 22,627.67, 31,115.43 and 19,638.30 is: 27,004.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,627.67 : 31,115.43 = 19,638.30 : x
  2. Step 2: Convert to fraction form
    22,627.67/31,115.43 = 19,638.30/x
  3. Step 3: Cross multiply
    22,627.67x = 31,115.43 × 19,638.30
  4. Step 4: Simplify right side
    22,627.67x = 611,054,148.97
  5. Step 5: Solve for x
    x = 611,054,148.97/22,627.67
  6. Step 6: Final answer
    x = 27,004.74

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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.