Home / 22,451.64-30,985.92-13,020.54

Finding the Fourth Proportional to 22,451.64, 30,985.92 and 13,020.54

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Solution

The fourth proportional to 22,451.64, 30,985.92 and 13,020.54 is: 17,969.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,451.64 : 30,985.92 = 13,020.54 : x
  2. Step 2: Convert to fraction form
    22,451.64/30,985.92 = 13,020.54/x
  3. Step 3: Cross multiply
    22,451.64x = 30,985.92 × 13,020.54
  4. Step 4: Simplify right side
    22,451.64x = 403,453,410.80
  5. Step 5: Solve for x
    x = 403,453,410.80/22,451.64
  6. Step 6: Final answer
    x = 17,969.89

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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.