Home / 42,609.55-63,919.01-11,447.23

Finding the Fourth Proportional to 42,609.55, 63,919.01 and 11,447.23

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Solution

The fourth proportional to 42,609.55, 63,919.01 and 11,447.23 is: 17,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,609.55 : 63,919.01 = 11,447.23 : x
  2. Step 2: Convert to fraction form
    42,609.55/63,919.01 = 11,447.23/x
  3. Step 3: Cross multiply
    42,609.55x = 63,919.01 × 11,447.23
  4. Step 4: Simplify right side
    42,609.55x = 731,695,608.84
  5. Step 5: Solve for x
    x = 731,695,608.84/42,609.55
  6. Step 6: Final answer
    x = 17,172.10

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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.