Home / 22,919.72-31,627.62-13,486.28

Finding the Fourth Proportional to 22,919.72, 31,627.62 and 13,486.28

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Solution

The fourth proportional to 22,919.72, 31,627.62 and 13,486.28 is: 18,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,919.72 : 31,627.62 = 13,486.28 : x
  2. Step 2: Convert to fraction form
    22,919.72/31,627.62 = 13,486.28/x
  3. Step 3: Cross multiply
    22,919.72x = 31,627.62 × 13,486.28
  4. Step 4: Simplify right side
    22,919.72x = 426,538,939.05
  5. Step 5: Solve for x
    x = 426,538,939.05/22,919.72
  6. Step 6: Final answer
    x = 18,610.13

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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.