Home / 26,187.91-39,281.88-18,431.35

Finding the Fourth Proportional to 26,187.91, 39,281.88 and 18,431.35

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Solution

The fourth proportional to 26,187.91, 39,281.88 and 18,431.35 is: 27,647.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,187.91 : 39,281.88 = 18,431.35 : x
  2. Step 2: Convert to fraction form
    26,187.91/39,281.88 = 18,431.35/x
  3. Step 3: Cross multiply
    26,187.91x = 39,281.88 × 18,431.35
  4. Step 4: Simplify right side
    26,187.91x = 724,018,078.94
  5. Step 5: Solve for x
    x = 724,018,078.94/26,187.91
  6. Step 6: Final answer
    x = 27,647.04

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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.