Home / 26,415.91-39,586.87-18,985.51

Finding the Fourth Proportional to 26,415.91, 39,586.87 and 18,985.51

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Solution

The fourth proportional to 26,415.91, 39,586.87 and 18,985.51 is: 28,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,415.91 : 39,586.87 = 18,985.51 : x
  2. Step 2: Convert to fraction form
    26,415.91/39,586.87 = 18,985.51/x
  3. Step 3: Cross multiply
    26,415.91x = 39,586.87 × 18,985.51
  4. Step 4: Simplify right side
    26,415.91x = 751,576,916.25
  5. Step 5: Solve for x
    x = 751,576,916.25/26,415.91
  6. Step 6: Final answer
    x = 28,451.68

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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.