Home / 19,813.28-29,645.04-11,885.60

Finding the Fourth Proportional to 19,813.28, 29,645.04 and 11,885.60

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Solution

The fourth proportional to 19,813.28, 29,645.04 and 11,885.60 is: 17,783.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.28 : 29,645.04 = 11,885.60 : x
  2. Step 2: Convert to fraction form
    19,813.28/29,645.04 = 11,885.60/x
  3. Step 3: Cross multiply
    19,813.28x = 29,645.04 × 11,885.60
  4. Step 4: Simplify right side
    19,813.28x = 352,349,087.42
  5. Step 5: Solve for x
    x = 352,349,087.42/19,813.28
  6. Step 6: Final answer
    x = 17,783.48

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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.