Home / 26,142.50-39,223.67-12,109.25

Finding the Fourth Proportional to 26,142.50, 39,223.67 and 12,109.25

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Solution

The fourth proportional to 26,142.50, 39,223.67 and 12,109.25 is: 18,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,142.50 : 39,223.67 = 12,109.25 : x
  2. Step 2: Convert to fraction form
    26,142.50/39,223.67 = 12,109.25/x
  3. Step 3: Cross multiply
    26,142.50x = 39,223.67 × 12,109.25
  4. Step 4: Simplify right side
    26,142.50x = 474,969,225.95
  5. Step 5: Solve for x
    x = 474,969,225.95/26,142.50
  6. Step 6: Final answer
    x = 18,168.47

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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.