Home / 26,387.30-39,587.70-18,611.30

Finding the Fourth Proportional to 26,387.30, 39,587.70 and 18,611.30

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Solution

The fourth proportional to 26,387.30, 39,587.70 and 18,611.30 is: 27,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,387.30 : 39,587.70 = 18,611.30 : x
  2. Step 2: Convert to fraction form
    26,387.30/39,587.70 = 18,611.30/x
  3. Step 3: Cross multiply
    26,387.30x = 39,587.70 × 18,611.30
  4. Step 4: Simplify right side
    26,387.30x = 736,778,561.01
  5. Step 5: Solve for x
    x = 736,778,561.01/26,387.30
  6. Step 6: Final answer
    x = 27,921.71

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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.