Home / 19,629.60-29,444.40-11,853.60

Finding the Fourth Proportional to 19,629.60, 29,444.40 and 11,853.60

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Solution

The fourth proportional to 19,629.60, 29,444.40 and 11,853.60 is: 17,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.60 : 29,444.40 = 11,853.60 : x
  2. Step 2: Convert to fraction form
    19,629.60/29,444.40 = 11,853.60/x
  3. Step 3: Cross multiply
    19,629.60x = 29,444.40 × 11,853.60
  4. Step 4: Simplify right side
    19,629.60x = 349,022,139.84
  5. Step 5: Solve for x
    x = 349,022,139.84/19,629.60
  6. Step 6: Final answer
    x = 17,780.40

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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.