Home / 22,458.40-30,987.84-13,025.68

Finding the Fourth Proportional to 22,458.40, 30,987.84 and 13,025.68

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Solution

The fourth proportional to 22,458.40, 30,987.84 and 13,025.68 is: 17,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,458.40 : 30,987.84 = 13,025.68 : x
  2. Step 2: Convert to fraction form
    22,458.40/30,987.84 = 13,025.68/x
  3. Step 3: Cross multiply
    22,458.40x = 30,987.84 × 13,025.68
  4. Step 4: Simplify right side
    22,458.40x = 403,637,687.73
  5. Step 5: Solve for x
    x = 403,637,687.73/22,458.40
  6. Step 6: Final answer
    x = 17,972.68

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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.