Home / 26,135.70-39,225.15-12,117.30

Finding the Fourth Proportional to 26,135.70, 39,225.15 and 12,117.30

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Solution

The fourth proportional to 26,135.70, 39,225.15 and 12,117.30 is: 18,185.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,135.70 : 39,225.15 = 12,117.30 : x
  2. Step 2: Convert to fraction form
    26,135.70/39,225.15 = 12,117.30/x
  3. Step 3: Cross multiply
    26,135.70x = 39,225.15 × 12,117.30
  4. Step 4: Simplify right side
    26,135.70x = 475,302,910.10
  5. Step 5: Solve for x
    x = 475,302,910.10/26,135.70
  6. Step 6: Final answer
    x = 18,185.96

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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.