Home / 19,458.60-29,130.30-11,682.60

Finding the Fourth Proportional to 19,458.60, 29,130.30 and 11,682.60

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Solution

The fourth proportional to 19,458.60, 29,130.30 and 11,682.60 is: 17,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,458.60 : 29,130.30 = 11,682.60 : x
  2. Step 2: Convert to fraction form
    19,458.60/29,130.30 = 11,682.60/x
  3. Step 3: Cross multiply
    19,458.60x = 29,130.30 × 11,682.60
  4. Step 4: Simplify right side
    19,458.60x = 340,317,642.78
  5. Step 5: Solve for x
    x = 340,317,642.78/19,458.60
  6. Step 6: Final answer
    x = 17,489.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.