Home / 19,656.20-29,441.10-11,851.40

Finding the Fourth Proportional to 19,656.20, 29,441.10 and 11,851.40

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Solution

The fourth proportional to 19,656.20, 29,441.10 and 11,851.40 is: 17,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656.20 : 29,441.10 = 11,851.40 : x
  2. Step 2: Convert to fraction form
    19,656.20/29,441.10 = 11,851.40/x
  3. Step 3: Cross multiply
    19,656.20x = 29,441.10 × 11,851.40
  4. Step 4: Simplify right side
    19,656.20x = 348,918,252.54
  5. Step 5: Solve for x
    x = 348,918,252.54/19,656.20
  6. Step 6: Final answer
    x = 17,751.05

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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.