Home / 26,970.75-40,469.76-18,187.20

Finding the Fourth Proportional to 26,970.75, 40,469.76 and 18,187.20

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Solution

The fourth proportional to 26,970.75, 40,469.76 and 18,187.20 is: 27,289.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,970.75 : 40,469.76 = 18,187.20 : x
  2. Step 2: Convert to fraction form
    26,970.75/40,469.76 = 18,187.20/x
  3. Step 3: Cross multiply
    26,970.75x = 40,469.76 × 18,187.20
  4. Step 4: Simplify right side
    26,970.75x = 736,031,619.07
  5. Step 5: Solve for x
    x = 736,031,619.07/26,970.75
  6. Step 6: Final answer
    x = 27,289.99

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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.