Home / 19,459.95-29,143.11-11,114.64

Finding the Fourth Proportional to 19,459.95, 29,143.11 and 11,114.64

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Solution

The fourth proportional to 19,459.95, 29,143.11 and 11,114.64 is: 16,645.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,459.95 : 29,143.11 = 11,114.64 : x
  2. Step 2: Convert to fraction form
    19,459.95/29,143.11 = 11,114.64/x
  3. Step 3: Cross multiply
    19,459.95x = 29,143.11 × 11,114.64
  4. Step 4: Simplify right side
    19,459.95x = 323,915,176.13
  5. Step 5: Solve for x
    x = 323,915,176.13/19,459.95
  6. Step 6: Final answer
    x = 16,645.22

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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.